#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
+#include <vppinfra/linux/syscall.h>
#include <vnet/plugin/plugin.h>
#include <vnet/ethernet/ethernet.h>
#include <vpp/app/version.h>
static void
memif_queue_intfd_close (memif_queue_t * mq)
{
- if (mq->int_unix_file_index != ~0)
+ if (mq->int_clib_file_index != ~0)
{
- memif_file_del_by_index (mq->int_unix_file_index);
- mq->int_unix_file_index = ~0;
+ memif_file_del_by_index (mq->int_clib_file_index);
+ mq->int_clib_file_index = ~0;
mq->int_fd = -1;
}
else if (mq->int_fd > -1)
if (mif == 0)
return;
- DBG ("disconnect %u (%v)", mif->dev_instance, err ? err->what : 0);
+ memif_log_debug (mif, "disconnect %u (%v)", mif->dev_instance,
+ err ? err->what : 0);
if (err)
{
clib_error_t *e = 0;
mif->local_disc_string = vec_dup (err->what);
- if (mif->conn_fd > -1)
+ if (mif->sock && clib_socket_is_connected (mif->sock))
e = memif_msg_send_disconnect (mif, err);
clib_error_free (e);
}
vnet_hw_interface_set_flags (vnm, mif->hw_if_index, 0);
/* close connection socket */
- if (mif->conn_unix_file_index != ~0)
+ if (mif->sock && mif->sock->fd)
{
memif_socket_file_t *msf = vec_elt_at_index (mm->socket_files,
mif->socket_file_index);
- hash_unset (msf->dev_instance_by_fd, mif->conn_fd);
- memif_file_del_by_index (mif->conn_unix_file_index);
- mif->conn_unix_file_index = ~0;
+ hash_unset (msf->dev_instance_by_fd, mif->sock->fd);
+ memif_socket_close (&mif->sock);
+ }
+ else if (mif->sock)
+ {
+ clib_error_t *err;
+ err = clib_socket_close (mif->sock);
+ if (err)
+ {
+ memif_log_err (mif, "%U", format_clib_error, err);
+ clib_error_free (err);
+ }
+ clib_mem_free (mif->sock);
}
- else if (mif->conn_fd > -1)
- close (mif->conn_fd);
- mif->conn_fd = -1;
+ /* *INDENT-OFF* */
vec_foreach_index (i, mif->rx_queues)
- {
- mq = vec_elt_at_index (mif->rx_queues, i);
- if (mq->ring)
- {
- int rv;
- rv = vnet_hw_interface_unassign_rx_thread (vnm, mif->hw_if_index, i);
- if (rv)
- DBG ("Warning: unable to unassign interface %d, "
- "queue %d: rc=%d", mif->hw_if_index, i, rv);
- mq->ring = 0;
- }
- }
+ {
+ mq = vec_elt_at_index (mif->rx_queues, i);
+ if (mq->ring)
+ {
+ int rv;
+ rv = vnet_hw_interface_unassign_rx_thread (vnm, mif->hw_if_index, i);
+ if (rv)
+ memif_log_warn (mif,
+ "Unable to unassign interface %d, queue %d: rc=%d",
+ mif->hw_if_index, i, rv);
+ mq->ring = 0;
+ }
+ }
/* free tx and rx queues */
- vec_foreach (mq, mif->rx_queues) memif_queue_intfd_close (mq);
+ vec_foreach (mq, mif->rx_queues)
+ memif_queue_intfd_close (mq);
vec_free (mif->rx_queues);
- vec_foreach (mq, mif->tx_queues) memif_queue_intfd_close (mq);
+ vec_foreach (mq, mif->tx_queues)
+ memif_queue_intfd_close (mq);
vec_free (mif->tx_queues);
/* free memory regions */
vec_foreach (mr, mif->regions)
- {
- int rv;
- if ((rv = munmap (mr->shm, mr->region_size)))
- clib_warning ("munmap failed, rv = %d", rv);
- if (mr->fd > -1)
- close (mr->fd);
- }
+ {
+ int rv;
+ if (mr->is_external)
+ continue;
+ if ((rv = munmap (mr->shm, mr->region_size)))
+ memif_log_err (mif, "munmap failed, rv = %d", rv);
+ if (mr->fd > -1)
+ close (mr->fd);
+ }
+ /* *INDENT-ON* */
vec_free (mif->regions);
-
- mif->remote_pid = 0;
vec_free (mif->remote_name);
vec_free (mif->remote_if_name);
clib_fifo_free (mif->msg_queue);
}
static clib_error_t *
-memif_int_fd_read_ready (unix_file_t * uf)
+memif_int_fd_read_ready (clib_file_t * uf)
{
memif_main_t *mm = &memif_main;
vnet_main_t *vnm = vnet_get_main ();
size = read (uf->file_descriptor, &b, sizeof (b));
if (size < 0)
{
- DBG_UNIX_LOG ("Failed to read from socket");
+ memif_log_debug (mif, "Failed to read form socket");
return 0;
}
memif_connect (memif_if_t * mif)
{
vnet_main_t *vnm = vnet_get_main ();
- unix_file_t template = { 0 };
+ clib_file_t template = { 0 };
memif_region_t *mr;
int i;
+ clib_error_t *err = NULL;
- DBG ("connect %u", mif->dev_instance);
+ memif_log_debug (mif, "connect %u", mif->dev_instance);
vec_free (mif->local_disc_string);
vec_free (mif->remote_disc_string);
+ /* *INDENT-OFF* */
vec_foreach (mr, mif->regions)
- {
- if (mr->shm)
- continue;
+ {
+ if (mr->shm)
+ continue;
- if (mr->fd < 0)
- clib_error_return (0, "no memory region fd");
+ if (mr->fd < 0)
+ {
+ err = clib_error_return (0, "no memory region fd");
+ goto error;
+ }
- if ((mr->shm = mmap (NULL, mr->region_size, PROT_READ | PROT_WRITE,
- MAP_SHARED, mr->fd, 0)) == MAP_FAILED)
- return clib_error_return_unix (0, "mmap");
- }
+ if ((mr->shm = mmap (NULL, mr->region_size, PROT_READ | PROT_WRITE,
+ MAP_SHARED, mr->fd, 0)) == MAP_FAILED)
+ {
+ err = clib_error_return_unix (0, "mmap");
+ goto error;
+ }
+ }
+ /* *INDENT-ON* */
template.read_function = memif_int_fd_read_ready;
+ /* *INDENT-OFF* */
vec_foreach_index (i, mif->tx_queues)
- {
- memif_queue_t *mq = vec_elt_at_index (mif->tx_queues, i);
+ {
+ memif_queue_t *mq = vec_elt_at_index (mif->tx_queues, i);
- mq->ring = mif->regions[mq->region].shm + mq->offset;
- if (mq->ring->cookie != MEMIF_COOKIE)
- return clib_error_return (0, "wrong cookie on tx ring %u", i);
- }
+ mq->ring = mif->regions[mq->region].shm + mq->offset;
+ if (mq->ring->cookie != MEMIF_COOKIE)
+ {
+ err = clib_error_return (0, "wrong cookie on tx ring %u", i);
+ goto error;
+ }
+ }
vec_foreach_index (i, mif->rx_queues)
- {
- memif_queue_t *mq = vec_elt_at_index (mif->rx_queues, i);
- int rv;
-
- mq->ring = mif->regions[mq->region].shm + mq->offset;
- if (mq->ring->cookie != MEMIF_COOKIE)
- return clib_error_return (0, "wrong cookie on tx ring %u", i);
-
- if (mq->int_fd > -1)
- {
- template.file_descriptor = mq->int_fd;
- template.private_data = (mif->dev_instance << 16) | (i & 0xFFFF);
- memif_file_add (&mq->int_unix_file_index, &template);
- }
- vnet_hw_interface_assign_rx_thread (vnm, mif->hw_if_index, i, ~0);
- rv = vnet_hw_interface_set_rx_mode (vnm, mif->hw_if_index, i,
- VNET_HW_INTERFACE_RX_MODE_DEFAULT);
- if (rv)
- clib_warning
- ("Warning: unable to set rx mode for interface %d queue %d: "
- "rc=%d", mif->hw_if_index, i, rv);
- else
- {
- vnet_hw_interface_rx_mode rxmode;
- vnet_hw_interface_get_rx_mode (vnm, mif->hw_if_index, i, &rxmode);
-
- if (rxmode == VNET_HW_INTERFACE_RX_MODE_POLLING)
- mq->ring->flags |= MEMIF_RING_FLAG_MASK_INT;
- }
- }
+ {
+ memif_queue_t *mq = vec_elt_at_index (mif->rx_queues, i);
+ int rv;
+
+ mq->ring = mif->regions[mq->region].shm + mq->offset;
+ if (mq->ring->cookie != MEMIF_COOKIE)
+ {
+ err = clib_error_return (0, "wrong cookie on tx ring %u", i);
+ goto error;
+ }
+
+ if (mq->int_fd > -1)
+ {
+ template.file_descriptor = mq->int_fd;
+ template.private_data = (mif->dev_instance << 16) | (i & 0xFFFF);
+ template.description = format (0, "%U rx %u int",
+ format_memif_device_name,
+ mif->dev_instance, i);
+ memif_file_add (&mq->int_clib_file_index, &template);
+ }
+ vnet_hw_interface_assign_rx_thread (vnm, mif->hw_if_index, i, ~0);
+ rv = vnet_hw_interface_set_rx_mode (vnm, mif->hw_if_index, i,
+ VNET_HW_INTERFACE_RX_MODE_DEFAULT);
+ if (rv)
+ memif_log_err
+ (mif, "Warning: unable to set rx mode for interface %d queue %d: "
+ "rc=%d", mif->hw_if_index, i, rv);
+ else
+ {
+ vnet_hw_interface_rx_mode rxmode;
+ vnet_hw_interface_get_rx_mode (vnm, mif->hw_if_index, i, &rxmode);
+
+ if (rxmode == VNET_HW_INTERFACE_RX_MODE_POLLING)
+ mq->ring->flags |= MEMIF_RING_FLAG_MASK_INT;
+ else
+ vnet_device_input_set_interrupt_pending (vnm, mif->hw_if_index, i);
+ }
+ }
+ /* *INDENT-ON* */
mif->flags &= ~MEMIF_IF_FLAG_CONNECTING;
mif->flags |= MEMIF_IF_FLAG_CONNECTED;
vnet_hw_interface_set_flags (vnm, mif->hw_if_index,
VNET_HW_INTERFACE_FLAG_LINK_UP);
return 0;
+
+error:
+ memif_log_err (mif, "%U", format_clib_error, err);
+ return err;
}
static_always_inline memif_ring_t *
clib_error_t *
memif_init_regions_and_queues (memif_if_t * mif)
{
+ vlib_main_t *vm = vlib_get_main ();
memif_ring_t *ring = NULL;
int i, j;
u64 buffer_offset;
memif_region_t *r;
+ clib_mem_vm_alloc_t alloc = { 0 };
+ clib_error_t *err;
- vec_validate_aligned (mif->regions, 0, CLIB_CACHE_LINE_BYTES);
- r = vec_elt_at_index (mif->regions, 0);
+ ASSERT (vec_len (mif->regions) == 0);
+ vec_add2_aligned (mif->regions, r, 1, CLIB_CACHE_LINE_BYTES);
buffer_offset = (mif->run.num_s2m_rings + mif->run.num_m2s_rings) *
(sizeof (memif_ring_t) +
sizeof (memif_desc_t) * (1 << mif->run.log2_ring_size));
- r->region_size = buffer_offset +
- mif->run.buffer_size * (1 << mif->run.log2_ring_size) *
- (mif->run.num_s2m_rings + mif->run.num_m2s_rings);
+ r->region_size = buffer_offset;
- if ((r->fd = memfd_create ("memif region 0", MFD_ALLOW_SEALING)) == -1)
- return clib_error_return_unix (0, "memfd_create");
+ if ((mif->flags & MEMIF_IF_FLAG_ZERO_COPY) == 0)
+ r->region_size += mif->run.buffer_size * (1 << mif->run.log2_ring_size) *
+ (mif->run.num_s2m_rings + mif->run.num_m2s_rings);
- if ((fcntl (r->fd, F_ADD_SEALS, F_SEAL_SHRINK)) == -1)
- return clib_error_return_unix (0, "fcntl (F_ADD_SEALS, F_SEAL_SHRINK)");
+ alloc.name = "memif region";
+ alloc.size = r->region_size;
+ alloc.flags = CLIB_MEM_VM_F_SHARED;
- if ((ftruncate (r->fd, r->region_size)) == -1)
- return clib_error_return_unix (0, "ftruncate");
+ err = clib_mem_vm_ext_alloc (&alloc);
+ if (err)
+ goto error;
- if ((r->shm = mmap (NULL, r->region_size, PROT_READ | PROT_WRITE,
- MAP_SHARED, r->fd, 0)) == MAP_FAILED)
- return clib_error_return_unix (0, "mmap");
+ r->fd = alloc.fd;
+ r->shm = alloc.addr;
+
+ if (mif->flags & MEMIF_IF_FLAG_ZERO_COPY)
+ {
+ vlib_buffer_pool_t *bp;
+ /* *INDENT-OFF* */
+ vec_foreach (bp, buffer_main.buffer_pools)
+ {
+ vlib_physmem_region_t *pr;
+ pr = vlib_physmem_get_region (vm, bp->physmem_region);
+ vec_add2_aligned (mif->regions, r, 1, CLIB_CACHE_LINE_BYTES);
+ r->fd = pr->fd;
+ r->region_size = pr->size;
+ r->shm = pr->mem;
+ r->is_external = 1;
+ }
+ /* *INDENT-ON* */
+ }
for (i = 0; i < mif->run.num_s2m_rings; i++)
{
ring = memif_get_ring (mif, MEMIF_RING_S2M, i);
ring->head = ring->tail = 0;
ring->cookie = MEMIF_COOKIE;
+
+ if (mif->flags & MEMIF_IF_FLAG_ZERO_COPY)
+ continue;
+
for (j = 0; j < (1 << mif->run.log2_ring_size); j++)
{
u16 slot = i * (1 << mif->run.log2_ring_size) + j;
ring->desc[j].region = 0;
ring->desc[j].offset =
buffer_offset + (u32) (slot * mif->run.buffer_size);
- ring->desc[j].buffer_length = mif->run.buffer_size;
+ ring->desc[j].length = mif->run.buffer_size;
}
}
for (i = 0; i < mif->run.num_m2s_rings; i++)
ring = memif_get_ring (mif, MEMIF_RING_M2S, i);
ring->head = ring->tail = 0;
ring->cookie = MEMIF_COOKIE;
+
+ if (mif->flags & MEMIF_IF_FLAG_ZERO_COPY)
+ continue;
+
for (j = 0; j < (1 << mif->run.log2_ring_size); j++)
{
u16 slot =
ring->desc[j].region = 0;
ring->desc[j].offset =
buffer_offset + (u32) (slot * mif->run.buffer_size);
- ring->desc[j].buffer_length = mif->run.buffer_size;
+ ring->desc[j].length = mif->run.buffer_size;
}
}
ASSERT (mif->tx_queues == 0);
vec_validate_aligned (mif->tx_queues, mif->run.num_s2m_rings - 1,
CLIB_CACHE_LINE_BYTES);
+
+ /* *INDENT-OFF* */
vec_foreach_index (i, mif->tx_queues)
- {
- memif_queue_t *mq = vec_elt_at_index (mif->tx_queues, i);
- if ((mq->int_fd = eventfd (0, EFD_NONBLOCK)) < 0)
- return clib_error_return_unix (0, "eventfd[tx queue %u]", i);
- mq->int_unix_file_index = ~0;
- mq->ring = memif_get_ring (mif, MEMIF_RING_S2M, i);
- mq->log2_ring_size = mif->cfg.log2_ring_size;
- mq->region = 0;
- mq->offset = (void *) mq->ring - (void *) mif->regions[mq->region].shm;
- mq->last_head = 0;
- }
+ {
+ memif_queue_t *mq = vec_elt_at_index (mif->tx_queues, i);
+ if ((mq->int_fd = eventfd (0, EFD_NONBLOCK)) < 0)
+ {
+ err = clib_error_return_unix (0, "eventfd[tx queue %u]", i);
+ goto error;
+ }
+ mq->int_clib_file_index = ~0;
+ mq->ring = memif_get_ring (mif, MEMIF_RING_S2M, i);
+ mq->log2_ring_size = mif->cfg.log2_ring_size;
+ mq->region = 0;
+ mq->offset = (void *) mq->ring - (void *) mif->regions[mq->region].shm;
+ mq->last_head = 0;
+ mq->type = MEMIF_RING_S2M;
+ if (mif->flags & MEMIF_IF_FLAG_ZERO_COPY)
+ vec_validate_aligned (mq->buffers, 1 << mq->log2_ring_size,
+ CLIB_CACHE_LINE_BYTES);
+ }
+ /* *INDENT-ON* */
ASSERT (mif->rx_queues == 0);
vec_validate_aligned (mif->rx_queues, mif->run.num_m2s_rings - 1,
CLIB_CACHE_LINE_BYTES);
+
+ /* *INDENT-OFF* */
vec_foreach_index (i, mif->rx_queues)
- {
- memif_queue_t *mq = vec_elt_at_index (mif->rx_queues, i);
- if ((mq->int_fd = eventfd (0, EFD_NONBLOCK)) < 0)
- return clib_error_return_unix (0, "eventfd[rx queue %u]", i);
- mq->int_unix_file_index = ~0;
- mq->ring = memif_get_ring (mif, MEMIF_RING_M2S, i);
- mq->log2_ring_size = mif->cfg.log2_ring_size;
- mq->region = 0;
- mq->offset = (void *) mq->ring - (void *) mif->regions[mq->region].shm;
- mq->last_head = 0;
- }
+ {
+ memif_queue_t *mq = vec_elt_at_index (mif->rx_queues, i);
+ if ((mq->int_fd = eventfd (0, EFD_NONBLOCK)) < 0)
+ {
+ err = clib_error_return_unix (0, "eventfd[rx queue %u]", i);
+ goto error;
+ }
+ mq->int_clib_file_index = ~0;
+ mq->ring = memif_get_ring (mif, MEMIF_RING_M2S, i);
+ mq->log2_ring_size = mif->cfg.log2_ring_size;
+ mq->region = 0;
+ mq->offset = (void *) mq->ring - (void *) mif->regions[mq->region].shm;
+ mq->last_head = 0;
+ mq->type = MEMIF_RING_M2S;
+ if (mif->flags & MEMIF_IF_FLAG_ZERO_COPY)
+ vec_validate_aligned (mq->buffers, 1 << mq->log2_ring_size,
+ CLIB_CACHE_LINE_BYTES);
+ }
+ /* *INDENT-ON* */
return 0;
+
+error:
+ memif_log_err (mif, "%U", format_clib_error, err);
+ return err;
}
static uword
{
memif_main_t *mm = &memif_main;
memif_if_t *mif;
- struct sockaddr_un sun;
- int sockfd;
+ clib_socket_t *sock;
uword *event_data = 0, event_type;
u8 enabled = 0;
f64 start_time, last_run_duration = 0, now;
+ clib_error_t *err;
- sockfd = socket (AF_UNIX, SOCK_SEQPACKET, 0);
- if (sockfd < 0)
- {
- DBG_UNIX_LOG ("socket AF_UNIX");
- return 0;
- }
- sun.sun_family = AF_UNIX;
+ sock = clib_mem_alloc (sizeof (clib_socket_t));
+ memset (sock, 0, sizeof (clib_socket_t));
while (1)
{
if (mif->flags & MEMIF_IF_FLAG_IS_SLAVE)
{
- strncpy (sun.sun_path, (char *) msf->filename,
- sizeof (sun.sun_path) - 1);
-
- if (connect
- (sockfd, (struct sockaddr *) &sun,
- sizeof (struct sockaddr_un)) == 0)
+ memset (sock, 0, sizeof(clib_socket_t));
+ sock->config = (char *) msf->filename;
+ sock->flags = CLIB_SOCKET_F_IS_CLIENT| CLIB_SOCKET_F_SEQPACKET;
+
+ if ((err = clib_socket_init (sock)))
+ {
+ clib_error_free (err);
+ }
+ else
{
- unix_file_t t = { 0 };
+ clib_file_t t = { 0 };
- mif->conn_fd = sockfd;
t.read_function = memif_slave_conn_fd_read_ready;
t.write_function = memif_slave_conn_fd_write_ready;
t.error_function = memif_slave_conn_fd_error;
- t.file_descriptor = mif->conn_fd;
+ t.file_descriptor = sock->fd;
t.private_data = mif->dev_instance;
- memif_file_add (&mif->conn_unix_file_index, &t);
- hash_set (msf->dev_instance_by_fd, mif->conn_fd, mif->dev_instance);
+ memif_file_add (&sock->private_data, &t);
+ t.description = format (0, "%U ctl",
+ format_memif_device_name,
+ mif->dev_instance);
+ hash_set (msf->dev_instance_by_fd, sock->fd, mif->dev_instance);
mif->flags |= MEMIF_IF_FLAG_CONNECTING;
-
- /* grab another fd */
- sockfd = socket (AF_UNIX, SOCK_SEQPACKET, 0);
- if (sockfd < 0)
- {
- DBG_UNIX_LOG ("socket AF_UNIX");
- return 0;
- }
+ mif->sock = sock;
+ sock = clib_mem_alloc (sizeof(clib_socket_t));
}
}
}));
};
/* *INDENT-ON* */
+static int
+memif_add_socket_file (u32 sock_id, u8 * socket_filename)
+{
+ memif_main_t *mm = &memif_main;
+ uword *p;
+ memif_socket_file_t *msf;
+
+ p = hash_get (mm->socket_file_index_by_sock_id, sock_id);
+ if (p)
+ {
+ msf = pool_elt_at_index (mm->socket_files, *p);
+ if (strcmp ((char *) msf->filename, (char *) socket_filename) == 0)
+ {
+ /* Silently accept identical "add". */
+ return 0;
+ }
+
+ /* But don't allow a direct add of a different filename. */
+ return VNET_API_ERROR_ENTRY_ALREADY_EXISTS;
+ }
+
+ pool_get (mm->socket_files, msf);
+ memset (msf, 0, sizeof (memif_socket_file_t));
+
+ msf->filename = socket_filename;
+ msf->socket_id = sock_id;
+
+ hash_set (mm->socket_file_index_by_sock_id, sock_id,
+ msf - mm->socket_files);
+
+ return 0;
+}
+
+static int
+memif_delete_socket_file (u32 sock_id)
+{
+ memif_main_t *mm = &memif_main;
+ uword *p;
+ memif_socket_file_t *msf;
+
+ p = hash_get (mm->socket_file_index_by_sock_id, sock_id);
+ if (!p)
+ {
+ /* Don't delete non-existent entries. */
+ return VNET_API_ERROR_INVALID_ARGUMENT;
+ }
+
+ msf = pool_elt_at_index (mm->socket_files, *p);
+ if (msf->ref_cnt > 0)
+ {
+ return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
+ }
+
+ vec_free (msf->filename);
+ pool_put (mm->socket_files, msf);
+
+ hash_unset (mm->socket_file_index_by_sock_id, sock_id);
+
+ return 0;
+}
+
+int
+memif_socket_filename_add_del (u8 is_add, u32 sock_id, u8 * sock_filename)
+{
+ struct stat file_stat;
+ char *dir = 0, *tmp;
+ u32 idx = 0;
+
+ /* allow adding socket id 0 */
+ if ((sock_id == 0 && is_add == 0) || sock_id == ~0)
+ {
+ return VNET_API_ERROR_INVALID_ARGUMENT;
+ }
+
+ if (is_add == 0)
+ {
+ return memif_delete_socket_file (sock_id);
+ }
+
+ if (sock_filename == 0 || sock_filename[0] == 0)
+ {
+ return VNET_API_ERROR_INVALID_ARGUMENT;
+ }
+
+ if (sock_filename[0] != '/')
+ {
+ clib_error_t *error;
+
+ /* copy runtime dir path */
+ vec_add (dir, vlib_unix_get_runtime_dir (),
+ strlen (vlib_unix_get_runtime_dir ()));
+ vec_add1 (dir, '/');
+
+ /* if sock_filename contains dirs, add them to path */
+ tmp = strrchr ((char *) sock_filename, '/');
+ if (tmp)
+ {
+ idx = tmp - (char *) sock_filename;
+ vec_add (dir, sock_filename, idx);
+ }
+
+ vec_add1 (dir, '\0');
+ /* create socket dir */
+ error = vlib_unix_recursive_mkdir (dir);
+ if (error)
+ {
+ clib_error_free (error);
+ return VNET_API_ERROR_SYSCALL_ERROR_1;
+ }
+
+ sock_filename = format (0, "%s/%s%c", vlib_unix_get_runtime_dir (),
+ sock_filename, 0);
+ }
+ else
+ {
+ sock_filename = vec_dup (sock_filename);
+
+ /* check if directory exists */
+ tmp = strrchr ((char *) sock_filename, '/');
+ if (tmp)
+ {
+ idx = tmp - (char *) sock_filename;
+ vec_add (dir, sock_filename, idx);
+ vec_add1 (dir, '\0');
+ }
+
+ if (((dir == 0) || (stat (dir, &file_stat) == -1)
+ || (!S_ISDIR (file_stat.st_mode))) && (idx != 0))
+ {
+ vec_free (dir);
+ return VNET_API_ERROR_INVALID_ARGUMENT;
+ }
+ }
+ vec_free (dir);
+
+ return memif_add_socket_file (sock_id, sock_filename);
+}
+
int
memif_delete_if (vlib_main_t * vm, memif_if_t * mif)
{
memif_disconnect (mif, err);
clib_error_free (err);
- /* remove the interface */
- if (mif->mode == MEMIF_INTERFACE_MODE_IP)
- vnet_delete_hw_interface (vnm, mif->hw_if_index);
- else
- ethernet_delete_interface (vnm, mif->hw_if_index);
- mif->hw_if_index = ~0;
+ if (mif->hw_if_index != ~0)
+ {
+ /* remove the interface */
+ if (mif->mode == MEMIF_INTERFACE_MODE_IP)
+ vnet_delete_hw_interface (vnm, mif->hw_if_index);
+ else
+ ethernet_delete_interface (vnm, mif->hw_if_index);
+ mif->hw_if_index = ~0;
+ }
/* free interface data structures */
clib_spinlock_free (&mif->lockp);
{
if (msf->is_listener)
{
- uword *x;
- memif_file_del_by_index (msf->unix_file_index);
- vec_foreach (x, msf->pending_file_indices)
- {
- memif_file_del_by_index (*x);
- }
- vec_free (msf->pending_file_indices);
+ int i;
+ /* *INDENT-OFF* */
+ vec_foreach_index (i, msf->pending_clients)
+ memif_socket_close (msf->pending_clients + i);
+ /* *INDENT-ON* */
+ memif_socket_close (&msf->sock);
+ vec_free (msf->pending_clients);
}
mhash_free (&msf->dev_instance_by_id);
hash_free (msf->dev_instance_by_fd);
- mhash_unset (&mm->socket_file_index_by_filename, msf->filename, 0);
- vec_free (msf->filename);
- pool_put (mm->socket_files, msf);
+ if (msf->sock)
+ {
+ err = clib_socket_close (msf->sock);
+ if (err)
+ {
+ memif_log_err (mif, "%U", format_clib_error, err);
+ clib_error_free (err);
+ }
+ clib_mem_free (msf->sock);
+ }
}
memset (mif, 0, sizeof (*mif));
uword *p;
vnet_hw_interface_t *hw;
memif_socket_file_t *msf = 0;
- u8 *socket_filename;
int rv = 0;
- if (args->socket_filename == 0 || args->socket_filename[0] != '/')
+ p = hash_get (mm->socket_file_index_by_sock_id, args->socket_id);
+ if (p == 0)
{
- rv = mkdir (MEMIF_DEFAULT_SOCKET_DIR, 0755);
- if (rv && errno != EEXIST)
- return VNET_API_ERROR_SYSCALL_ERROR_1;
-
- if (args->socket_filename == 0)
- socket_filename = format (0, "%s/%s%c", MEMIF_DEFAULT_SOCKET_DIR,
- MEMIF_DEFAULT_SOCKET_FILENAME, 0);
- else
- socket_filename = format (0, "%s/%s%c", MEMIF_DEFAULT_SOCKET_DIR,
- args->socket_filename, 0);
-
+ rv = VNET_API_ERROR_INVALID_ARGUMENT;
+ goto done;
}
- else
- socket_filename = vec_dup (args->socket_filename);
- p = mhash_get (&mm->socket_file_index_by_filename, socket_filename);
+ msf = vec_elt_at_index (mm->socket_files, p[0]);
- if (p)
+ /* existing socket file can be either master or slave but cannot be both */
+ if (msf->ref_cnt > 0)
{
- msf = vec_elt_at_index (mm->socket_files, p[0]);
-
- /* existing socket file can be either master or slave but cannot be both */
- if (!msf->is_listener != !args->is_master)
+ if ((!msf->is_listener != !args->is_master))
{
rv = VNET_API_ERROR_SUBIF_ALREADY_EXISTS;
goto done;
}
/* Create new socket file */
- if (msf == 0)
+ if (msf->ref_cnt == 0)
{
struct stat file_stat;
+
/* If we are creating listener make sure file doesn't exist or if it
* exists thn delete it if it is old socket file */
- if (args->is_master &&
- (stat ((char *) socket_filename, &file_stat) == 0))
+ if (args->is_master && (stat ((char *) msf->filename, &file_stat) == 0))
{
if (S_ISSOCK (file_stat.st_mode))
{
- unlink ((char *) socket_filename);
+ unlink ((char *) msf->filename);
}
else
{
- ret = VNET_API_ERROR_SYSCALL_ERROR_3;
- goto error;
+ error = clib_error_return (0, "File exists for %s",
+ msf->filename);
+ rv = VNET_API_ERROR_VALUE_EXIST;
+ goto done;
}
}
- pool_get (mm->socket_files, msf);
- memset (msf, 0, sizeof (memif_socket_file_t));
+
mhash_init (&msf->dev_instance_by_id, sizeof (uword),
sizeof (memif_interface_id_t));
msf->dev_instance_by_fd = hash_create (0, sizeof (uword));
- msf->filename = socket_filename;
- msf->fd = -1;
msf->is_listener = (args->is_master != 0);
- socket_filename = 0;
- mhash_set (&mm->socket_file_index_by_filename, msf->filename,
- msf - mm->socket_files, 0);
- DBG ("creating socket file %s", msf->filename);
+
+ memif_log_debug (0, "initializing socket file %s", msf->filename);
+ }
+
+ if (mm->per_thread_data == 0)
+ {
+ int i;
+ vlib_buffer_free_list_t *fl;
+
+ vec_validate_aligned (mm->per_thread_data, tm->n_vlib_mains - 1,
+ CLIB_CACHE_LINE_BYTES);
+
+ fl =
+ vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
+ for (i = 0; i < tm->n_vlib_mains; i++)
+ {
+ memif_per_thread_data_t *ptd =
+ vec_elt_at_index (mm->per_thread_data, i);
+ vlib_buffer_t *bt = &ptd->buffer_template;
+ vlib_buffer_init_for_free_list (bt, fl);
+ bt->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID;
+ bt->total_length_not_including_first_buffer = 0;
+ vnet_buffer (bt)->sw_if_index[VLIB_TX] = (u32) ~ 0;
+
+ /* initially prealloc copy_ops so we can use
+ _vec_len instead of vec_elen */
+ vec_validate_aligned (ptd->copy_ops, 0, CLIB_CACHE_LINE_BYTES);
+ vec_reset_length (ptd->copy_ops);
+ vec_validate_aligned (ptd->buffers, 0, CLIB_CACHE_LINE_BYTES);
+ vec_reset_length (ptd->buffers);
+ }
}
pool_get (mm->interfaces, mif);
mif->socket_file_index = msf - mm->socket_files;
mif->id = args->id;
mif->sw_if_index = mif->hw_if_index = mif->per_interface_next_index = ~0;
- mif->conn_unix_file_index = ~0;
- mif->conn_fd = -1;
mif->mode = args->mode;
if (args->secret)
mif->secret = vec_dup (args->secret);
if (tm->n_vlib_mains > 1)
clib_spinlock_init (&mif->lockp);
-
if (mif->mode == MEMIF_INTERFACE_MODE_ETHERNET)
{
if (error)
{
- clib_error_report (error);
ret = VNET_API_ERROR_SYSCALL_ERROR_2;
goto error;
}
/* If this is new one, start listening */
if (msf->is_listener && msf->ref_cnt == 0)
{
- struct sockaddr_un un = { 0 };
struct stat file_stat;
- int on = 1;
+ clib_socket_t *s = clib_mem_alloc (sizeof (clib_socket_t));
- if ((msf->fd = socket (AF_UNIX, SOCK_SEQPACKET, 0)) < 0)
- {
- ret = VNET_API_ERROR_SYSCALL_ERROR_4;
- goto error;
- }
+ ASSERT (msf->sock == 0);
+ msf->sock = s;
- un.sun_family = AF_UNIX;
- strncpy ((char *) un.sun_path, (char *) msf->filename,
- sizeof (un.sun_path) - 1);
+ memset (s, 0, sizeof (clib_socket_t));
+ s->config = (char *) msf->filename;
+ s->flags = CLIB_SOCKET_F_IS_SERVER |
+ CLIB_SOCKET_F_ALLOW_GROUP_WRITE |
+ CLIB_SOCKET_F_SEQPACKET | CLIB_SOCKET_F_PASSCRED;
- if (setsockopt (msf->fd, SOL_SOCKET, SO_PASSCRED, &on, sizeof (on)) < 0)
- {
- ret = VNET_API_ERROR_SYSCALL_ERROR_5;
- goto error;
- }
- if (bind (msf->fd, (struct sockaddr *) &un, sizeof (un)) == -1)
- {
- ret = VNET_API_ERROR_SYSCALL_ERROR_6;
- goto error;
- }
- if (listen (msf->fd, 1) == -1)
+ if ((error = clib_socket_init (s)))
{
- ret = VNET_API_ERROR_SYSCALL_ERROR_7;
+ ret = VNET_API_ERROR_SYSCALL_ERROR_4;
goto error;
}
goto error;
}
- msf->unix_file_index = ~0;
- unix_file_t template = { 0 };
+ clib_file_t template = { 0 };
template.read_function = memif_conn_fd_accept_ready;
- template.file_descriptor = msf->fd;
+ template.file_descriptor = msf->sock->fd;
template.private_data = mif->socket_file_index;
- memif_file_add (&msf->unix_file_index, &template);
+ template.description = format (0, "memif listener %s", msf->filename);
+ memif_file_add (&msf->sock->private_data, &template);
}
msf->ref_cnt++;
if (args->is_master == 0)
- mif->flags |= MEMIF_IF_FLAG_IS_SLAVE;
+ {
+ mif->flags |= MEMIF_IF_FLAG_IS_SLAVE;
+ if (args->is_zero_copy)
+ mif->flags |= MEMIF_IF_FLAG_ZERO_COPY;
+ }
hw = vnet_get_hw_interface (vnm, mif->hw_if_index);
hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
mif->hw_if_index = ~0;
}
memif_delete_if (vm, mif);
+ if (error)
+ {
+ memif_log_err (mif, "%U", format_clib_error, error);
+ clib_error_free (error);
+ }
return ret;
done:
- vec_free (socket_filename);
return rv;
}
-
static clib_error_t *
memif_init (vlib_main_t * vm)
{
memif_main_t *mm = &memif_main;
- vlib_thread_main_t *tm = vlib_get_thread_main ();
memset (mm, 0, sizeof (memif_main_t));
+ mm->log_class = vlib_log_register_class ("memif_plugin", 0);
+ memif_log_debug (0, "initialized");
+
/* initialize binary API */
memif_plugin_api_hookup (vm);
- mhash_init_c_string (&mm->socket_file_index_by_filename, sizeof (uword));
-
- vec_validate_aligned (mm->rx_buffers, tm->n_vlib_mains - 1,
- CLIB_CACHE_LINE_BYTES);
+ /*
+ * Pre-stuff socket filename pool with a non-modifieable mapping
+ * for socket-id 0 to MEMIF_DEFAULT_SOCKET_FILENAME in the
+ * default run-time directory.
+ */
+ memif_socket_filename_add_del (1, 0, (u8 *) MEMIF_DEFAULT_SOCKET_FILENAME);
return 0;
}
/* *INDENT-OFF* */
VLIB_PLUGIN_REGISTER () = {
.version = VPP_BUILD_VER,
- .description = "Packet Memory Interface (experimetal)",
+ .description = "Packet Memory Interface (experimental)",
};
/* *INDENT-ON* */
Code Review / vpp.git / blobdiff