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 *err;
err = clib_socket_close (mif->sock);
if (err)
- clib_error_report (err);
+ {
+ memif_log_err (mif, "%U", format_clib_error, err);
+ clib_error_free (err);
+ }
clib_mem_free (mif->sock);
}
+ /* *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);
vec_free (mif->remote_name);
vec_free (mif->remote_if_name);
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;
}
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);
- 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)
- 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;
- else
- vnet_device_input_set_interrupt_pending (vnm, mif->hw_if_index, i);
- }
- }
+ {
+ 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;
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 ((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);
alloc.name = "memif region";
alloc.size = r->region_size;
err = clib_mem_vm_ext_alloc (&alloc);
if (err)
- return err;
+ goto error;
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 = 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 =
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_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;
- }
+ {
+ 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_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;
- }
+ {
+ 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
};
/* *INDENT-ON* */
-
static int
memif_add_socket_file (u32 sock_id, u8 * socket_filename)
{
return VNET_API_ERROR_ENTRY_ALREADY_EXISTS;
}
- DBG ("creating socket file (uninitialized) %s", msf->filename);
-
pool_get (mm->socket_files, msf);
memset (msf, 0, sizeof (memif_socket_file_t));
int
memif_socket_filename_add_del (u8 is_add, u32 sock_id, u8 * sock_filename)
{
- if (sock_id == 0 || sock_id == ~0)
+ 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 (sock_filename[0] != '/')
{
clib_error_t *error;
- error = vlib_unix_recursive_mkdir (vlib_unix_get_runtime_dir ());
+
+ /* 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);
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');
+ }
+
+ /* check dir existance and access rights for effective user/group IDs */
+ if (faccessat ( /* ignored */ -1, dir, F_OK | R_OK | W_OK, AT_EACCESS) <
+ 0)
+ {
+ vec_free (dir);
+ return VNET_API_ERROR_INVALID_ARGUMENT;
+ }
}
+ vec_free (dir);
return memif_add_socket_file (sock_id, sock_filename);
}
if (msf->is_listener)
{
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);
}
{
err = clib_socket_close (msf->sock);
if (err)
- clib_error_report (err);
+ {
+ memif_log_err (mif, "%U", format_clib_error, err);
+ clib_error_free (err);
+ }
clib_mem_free (msf->sock);
}
}
{
error = clib_error_return (0, "File exists for %s",
msf->filename);
- clib_error_report (error);
rv = VNET_API_ERROR_VALUE_EXIST;
goto done;
}
msf->dev_instance_by_fd = hash_create (0, sizeof (uword));
msf->is_listener = (args->is_master != 0);
- DBG ("initializing socket file %s", msf->filename);
+ memif_log_debug (0, "initializing socket file %s", msf->filename);
}
if (mm->per_thread_data == 0)
if (error)
{
- clib_error_report (error);
ret = VNET_API_ERROR_SYSCALL_ERROR_2;
goto error;
}
if ((error = clib_socket_init (s)))
{
- clib_error_report (error);
ret = VNET_API_ERROR_SYSCALL_ERROR_4;
goto error;
}
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:
return rv;
}
-
static clib_error_t *
memif_init (vlib_main_t * vm)
{
memif_main_t *mm = &memif_main;
- u8 *filename;
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);
* for socket-id 0 to MEMIF_DEFAULT_SOCKET_FILENAME in the
* default run-time directory.
*/
- filename = format (0, "%s/%s%c",
- vlib_unix_get_runtime_dir (),
- MEMIF_DEFAULT_SOCKET_FILENAME, 0);
- memif_add_socket_file (0, filename);
+ 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