#include <linux/if_ether.h>
#include <linux/if_packet.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <vppinfra/linux/sysfs.h>
#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
#include <vnet/ip/ip.h>
#include <vnet/devices/af_packet/af_packet.h>
+af_packet_main_t af_packet_main;
+
#define AF_PACKET_DEBUG_SOCKET 0
#define AF_PACKET_TX_FRAMES_PER_BLOCK 1024
af_packet_eth_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi,
u32 flags)
{
- /* nothing for now */
+ clib_error_t *error;
+ u8 *s;
+ af_packet_main_t *apm = &af_packet_main;
+ af_packet_if_t *apif =
+ pool_elt_at_index (apm->interfaces, hi->dev_instance);
+
+ if (ETHERNET_INTERFACE_FLAG_MTU == (flags & ETHERNET_INTERFACE_FLAG_MTU))
+ {
+ s = format (0, "/sys/class/net/%s/mtu%c", apif->host_if_name, 0);
+
+ error = clib_sysfs_write ((char *) s, "%d", hi->max_packet_bytes);
+ vec_free (s);
+
+ if (error)
+ {
+ clib_error_report (error);
+ return VNET_API_ERROR_SYSCALL_ERROR_1;
+ }
+ }
+
return 0;
}
static clib_error_t *
-af_packet_fd_read_ready (unix_file_t * uf)
+af_packet_fd_read_ready (clib_file_t * uf)
{
- vlib_main_t *vm = vlib_get_main ();
af_packet_main_t *apm = &af_packet_main;
+ vnet_main_t *vnm = vnet_get_main ();
u32 idx = uf->private_data;
+ af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, idx);
apm->pending_input_bitmap =
clib_bitmap_set (apm->pending_input_bitmap, idx, 1);
/* Schedule the rx node */
- vlib_node_set_interrupt_pending (vm, af_packet_input_node.index);
+ vnet_device_input_set_interrupt_pending (vnm, apif->hw_if_index, 0);
return 0;
}
static int
-create_packet_v2_sock (u8 * name, tpacket_req_t * rx_req,
+is_bridge (const u8 * host_if_name)
+{
+ u8 *s;
+ DIR *dir = NULL;
+
+ s = format (0, "/sys/class/net/%s/bridge%c", host_if_name, 0);
+ dir = opendir ((char *) s);
+ vec_free (s);
+
+ if (dir)
+ {
+ closedir (dir);
+ return 0;
+ }
+
+ return -1;
+}
+
+static int
+create_packet_v2_sock (int host_if_index, tpacket_req_t * rx_req,
tpacket_req_t * tx_req, int *fd, u8 ** ring)
{
int ret, err;
struct sockaddr_ll sll;
- uint host_if_index;
int ver = TPACKET_V2;
socklen_t req_sz = sizeof (struct tpacket_req);
u32 ring_sz = rx_req->tp_block_size * rx_req->tp_block_nr +
tx_req->tp_block_size * tx_req->tp_block_nr;
- host_if_index = if_nametoindex ((const char *) name);
-
- if (!host_if_index)
- {
- DBG_SOCK ("Wrong host interface name");
- ret = VNET_API_ERROR_INVALID_INTERFACE;
- goto error;
- }
-
if ((*fd = socket (AF_PACKET, SOCK_RAW, htons (ETH_P_ALL))) < 0)
{
DBG_SOCK ("Failed to create socket");
return ret;
}
-static void
-af_packet_worker_thread_enable ()
-{
- /* If worker threads are enabled, switch to polling mode */
- foreach_vlib_main ((
- {
- vlib_node_set_state (this_vlib_main,
- af_packet_input_node.index,
- VLIB_NODE_STATE_POLLING);
- }));
-
-}
-
-static void
-af_packet_worker_thread_disable ()
-{
- foreach_vlib_main ((
- {
- vlib_node_set_state (this_vlib_main,
- af_packet_input_node.index,
- VLIB_NODE_STATE_INTERRUPT);
- }));
-
-}
-
int
af_packet_create_if (vlib_main_t * vm, u8 * host_if_name, u8 * hw_addr_set,
u32 * sw_if_index)
u8 hw_addr[6];
clib_error_t *error;
vnet_sw_interface_t *sw;
+ vnet_hw_interface_t *hw;
vlib_thread_main_t *tm = vlib_get_thread_main ();
vnet_main_t *vnm = vnet_get_main ();
uword *p;
uword if_index;
u8 *host_if_name_dup = vec_dup (host_if_name);
+ int host_if_index = -1;
p = mhash_get (&apm->if_index_by_host_if_name, host_if_name);
if (p)
tx_req->tp_block_nr = AF_PACKET_TX_BLOCK_NR;
tx_req->tp_frame_nr = AF_PACKET_TX_FRAME_NR;
- ret = create_packet_v2_sock (host_if_name, rx_req, tx_req, &fd, &ring);
+ host_if_index = if_nametoindex ((const char *) host_if_name);
+
+ if (!host_if_index)
+ {
+ DBG_SOCK ("Wrong host interface name");
+ return VNET_API_ERROR_INVALID_INTERFACE;
+ }
+
+ ret = create_packet_v2_sock (host_if_index, rx_req, tx_req, &fd, &ring);
if (ret != 0)
goto error;
+ ret = is_bridge (host_if_name);
+
+ if (ret == 0) /* is a bridge, ignore state */
+ host_if_index = -1;
+
/* So far everything looks good, let's create interface */
pool_get (apm->interfaces, apif);
if_index = apif - apm->interfaces;
+ apif->host_if_index = host_if_index;
apif->fd = fd;
apif->rx_ring = ring;
apif->tx_ring = ring + rx_req->tp_block_size * rx_req->tp_block_nr;
apif->next_rx_frame = 0;
if (tm->n_vlib_mains > 1)
- {
- apif->lockp = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
- CLIB_CACHE_LINE_BYTES);
- memset ((void *) apif->lockp, 0, CLIB_CACHE_LINE_BYTES);
- }
+ clib_spinlock_init (&apif->lockp);
{
- unix_file_t template = { 0 };
+ clib_file_t template = { 0 };
template.read_function = af_packet_fd_read_ready;
template.file_descriptor = fd;
template.private_data = if_index;
template.flags = UNIX_FILE_EVENT_EDGE_TRIGGERED;
- apif->unix_file_index = unix_file_add (&unix_main, &template);
+ apif->clib_file_index = clib_file_add (&file_main, &template);
}
/*use configured or generate random MAC address */
}
sw = vnet_get_hw_sw_interface (vnm, apif->hw_if_index);
+ hw = vnet_get_hw_interface (vnm, apif->hw_if_index);
apif->sw_if_index = sw->sw_if_index;
+ vnet_hw_interface_set_input_node (vnm, apif->hw_if_index,
+ af_packet_input_node.index);
+ vnet_hw_interface_assign_rx_thread (vnm, apif->hw_if_index, 0, /* queue */
+ ~0 /* any cpu */ );
+
+ hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
vnet_hw_interface_set_flags (vnm, apif->hw_if_index,
VNET_HW_INTERFACE_FLAG_LINK_UP);
+ vnet_hw_interface_set_rx_mode (vnm, apif->hw_if_index, 0,
+ VNET_HW_INTERFACE_RX_MODE_INTERRUPT);
+
mhash_set_mem (&apm->if_index_by_host_if_name, host_if_name_dup, &if_index,
0);
if (sw_if_index)
*sw_if_index = apif->sw_if_index;
- if (tm->n_vlib_mains > 1 && pool_elts (apm->interfaces) == 1)
- af_packet_worker_thread_enable ();
-
return 0;
error:
af_packet_delete_if (vlib_main_t * vm, u8 * host_if_name)
{
vnet_main_t *vnm = vnet_get_main ();
- vlib_thread_main_t *tm = vlib_get_thread_main ();
af_packet_main_t *apm = &af_packet_main;
af_packet_if_t *apif;
uword *p;
/* bring down the interface */
vnet_hw_interface_set_flags (vnm, apif->hw_if_index, 0);
+ vnet_hw_interface_unassign_rx_thread (vnm, apif->hw_if_index, 0);
/* clean up */
- if (apif->unix_file_index != ~0)
+ if (apif->clib_file_index != ~0)
{
- unix_file_del (&unix_main, unix_main.file_pool + apif->unix_file_index);
- apif->unix_file_index = ~0;
+ clib_file_del (&file_main, file_main.file_pool + apif->clib_file_index);
+ apif->clib_file_index = ~0;
}
else
close (apif->fd);
vec_free (apif->host_if_name);
apif->host_if_name = NULL;
+ apif->host_if_index = -1;
mhash_unset (&apm->if_index_by_host_if_name, host_if_name, &if_index);
ethernet_delete_interface (vnm, apif->hw_if_index);
pool_put (apm->interfaces, apif);
- if (tm->n_vlib_mains > 1 && pool_elts (apm->interfaces) == 0)
- af_packet_worker_thread_disable ();
+
+ return 0;
+}
+
+int
+af_packet_set_l4_cksum_offload (vlib_main_t * vm, u32 sw_if_index, u8 set)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_hw_interface_t *hw;
+
+ hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
+
+ if (set)
+ hw->flags &= ~VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
+ else
+ hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
return 0;
}
{
af_packet_main_t *apm = &af_packet_main;
vlib_thread_main_t *tm = vlib_get_thread_main ();
- vlib_thread_registration_t *tr;
- uword *p;
memset (apm, 0, sizeof (af_packet_main_t));
- apm->input_cpu_first_index = 0;
- apm->input_cpu_count = 1;
-
- /* find out which cpus will be used for input */
- p = hash_get_mem (tm->thread_registrations_by_name, "workers");
- tr = p ? (vlib_thread_registration_t *) p[0] : 0;
-
- if (tr && tr->count > 0)
- {
- apm->input_cpu_first_index = tr->first_index;
- apm->input_cpu_count = tr->count;
- }
-
mhash_init_vec_string (&apm->if_index_by_host_if_name, sizeof (uword));
vec_validate_aligned (apm->rx_buffers, tm->n_vlib_mains - 1,
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