#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
#include <vnet/ip/ip.h>
+#include <vnet/devices/netlink.h>
#include <vnet/ethernet/ethernet.h>
+#include <vnet/interface/rx_queue_funcs.h>
+#include <vnet/interface/tx_queue_funcs.h>
#include <vnet/devices/af_packet/af_packet.h>
af_packet_main_t af_packet_main;
-#define AF_PACKET_TX_FRAMES_PER_BLOCK 1024
-#define AF_PACKET_TX_FRAME_SIZE (2048 * 5)
+VNET_HW_INTERFACE_CLASS (af_packet_ip_device_hw_interface_class, static) = {
+ .name = "af-packet-ip-device",
+ .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
+};
+
+#define AF_PACKET_DEFAULT_TX_FRAMES_PER_BLOCK 1024
+#define AF_PACKET_DEFAULT_TX_FRAME_SIZE (2048 * 33) // GSO packet of 64KB
#define AF_PACKET_TX_BLOCK_NR 1
-#define AF_PACKET_TX_FRAME_NR (AF_PACKET_TX_BLOCK_NR * \
- AF_PACKET_TX_FRAMES_PER_BLOCK)
-#define AF_PACKET_TX_BLOCK_SIZE (AF_PACKET_TX_FRAME_SIZE * \
- AF_PACKET_TX_FRAMES_PER_BLOCK)
-
-#define AF_PACKET_RX_FRAMES_PER_BLOCK 1024
-#define AF_PACKET_RX_FRAME_SIZE (2048 * 5)
-#define AF_PACKET_RX_BLOCK_NR 1
-#define AF_PACKET_RX_FRAME_NR (AF_PACKET_RX_BLOCK_NR * \
- AF_PACKET_RX_FRAMES_PER_BLOCK)
-#define AF_PACKET_RX_BLOCK_SIZE (AF_PACKET_RX_FRAME_SIZE * \
- AF_PACKET_RX_FRAMES_PER_BLOCK)
+
+#define AF_PACKET_DEFAULT_RX_FRAMES_PER_BLOCK 32
+#define AF_PACKET_DEFAULT_RX_FRAME_SIZE 2048
+#define AF_PACKET_RX_BLOCK_NR 160
/*defined in net/if.h but clashes with dpdk headers */
unsigned int if_nametoindex (const char *ifname);
-typedef struct tpacket_req tpacket_req_t;
-
-static u32
-af_packet_eth_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi,
- u32 flags)
+static clib_error_t *
+af_packet_eth_set_max_frame_size (vnet_main_t *vnm, vnet_hw_interface_t *hi,
+ u32 frame_size)
{
- clib_error_t *error;
- u8 *s;
+ clib_error_t *error, *rv;
af_packet_main_t *apm = &af_packet_main;
- af_packet_if_t *apif =
- pool_elt_at_index (apm->interfaces, hi->dev_instance);
-
- if (flags == ETHERNET_INTERFACE_FLAG_MTU)
- {
- s = format (0, "/sys/class/net/%s/mtu%c", apif->host_if_name, 0);
+ af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, hi->dev_instance);
- error = clib_sysfs_write ((char *) s, "%d", hi->max_packet_bytes);
- vec_free (s);
+ error = vnet_netlink_set_link_mtu (apif->host_if_index,
+ frame_size + hi->frame_overhead);
- if (error)
- {
- vlib_log_err (apm->log_class,
- "sysfs write failed to change MTU: %U",
- format_clib_error, error);
- clib_error_free (error);
- return VNET_API_ERROR_SYSCALL_ERROR_1;
- }
+ if (error)
+ {
+ vlib_log_err (apm->log_class, "netlink failed to change MTU: %U",
+ format_clib_error, error);
+ rv = vnet_error (VNET_ERR_SYSCALL_ERROR_1, "netlink error: %U",
+ format_clib_error, error);
+ clib_error_free (error);
+ return rv;
}
+ else
+ apif->host_mtu = frame_size + hi->frame_overhead;
+ return 0;
+}
+static int
+af_packet_read_mtu (af_packet_if_t *apif)
+{
+ af_packet_main_t *apm = &af_packet_main;
+ clib_error_t *error;
+ error = vnet_netlink_get_link_mtu (apif->host_if_index, &apif->host_mtu);
+ if (error)
+ {
+ vlib_log_err (apm->log_class, "netlink failed to get MTU: %U",
+ format_clib_error, error);
+ clib_error_free (error);
+ return VNET_API_ERROR_SYSCALL_ERROR_1;
+ }
return 0;
}
static clib_error_t *
af_packet_fd_read_ready (clib_file_t * uf)
{
- 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 */
- vnet_device_input_set_interrupt_pending (vnm, apif->hw_if_index, 0);
-
+ vnet_hw_if_rx_queue_set_int_pending (vnm, uf->private_data);
return 0;
}
return -1;
}
+static void
+af_packet_set_rx_queues (vlib_main_t *vm, af_packet_if_t *apif)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ af_packet_queue_t *rx_queue;
+
+ vnet_hw_if_set_input_node (vnm, apif->hw_if_index,
+ af_packet_input_node.index);
+
+ vec_foreach (rx_queue, apif->rx_queues)
+ {
+ rx_queue->queue_index = vnet_hw_if_register_rx_queue (
+ vnm, apif->hw_if_index, rx_queue->queue_id, VNET_HW_IF_RXQ_THREAD_ANY);
+
+ {
+ clib_file_t template = { 0 };
+ template.read_function = af_packet_fd_read_ready;
+ template.file_descriptor = rx_queue->fd;
+ template.private_data = rx_queue->queue_index;
+ template.flags = UNIX_FILE_EVENT_EDGE_TRIGGERED;
+ template.description =
+ format (0, "%U queue %u", format_af_packet_device_name,
+ apif->dev_instance, rx_queue->queue_id);
+ rx_queue->clib_file_index = clib_file_add (&file_main, &template);
+ }
+ vnet_hw_if_set_rx_queue_file_index (vnm, rx_queue->queue_index,
+ rx_queue->clib_file_index);
+ vnet_hw_if_set_rx_queue_mode (vnm, rx_queue->queue_index,
+ VNET_HW_IF_RX_MODE_INTERRUPT);
+ rx_queue->mode = VNET_HW_IF_RX_MODE_INTERRUPT;
+ }
+ vnet_hw_if_update_runtime_data (vnm, apif->hw_if_index);
+}
+
+static void
+af_packet_set_tx_queues (vlib_main_t *vm, af_packet_if_t *apif)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ af_packet_main_t *apm = &af_packet_main;
+ af_packet_queue_t *tx_queue;
+
+ vec_foreach (tx_queue, apif->tx_queues)
+ {
+ tx_queue->queue_index = vnet_hw_if_register_tx_queue (
+ vnm, apif->hw_if_index, tx_queue->queue_id);
+ }
+
+ if (apif->num_txqs == 0)
+ {
+ vlib_log_err (apm->log_class, "Interface %U has 0 txq",
+ format_vnet_hw_if_index_name, vnm, apif->hw_if_index);
+ return;
+ }
+
+ for (u32 j = 0; j < vlib_get_n_threads (); j++)
+ {
+ u32 qi = apif->tx_queues[j % apif->num_txqs].queue_index;
+ vnet_hw_if_tx_queue_assign_thread (vnm, qi, j);
+ }
+
+ vnet_hw_if_update_runtime_data (vnm, apif->hw_if_index);
+}
+
static int
-create_packet_v2_sock (int host_if_index, tpacket_req_t * rx_req,
- tpacket_req_t * tx_req, int *fd, u8 ** ring)
+create_packet_v3_sock (int host_if_index, tpacket_req3_t *rx_req,
+ tpacket_req3_t *tx_req, int *fd, af_packet_ring_t *ring,
+ u32 *hdrlen_ptr, u8 *is_cksum_gso_enabled,
+ u32 fanout_id, u8 is_fanout)
{
af_packet_main_t *apm = &af_packet_main;
- int ret;
struct sockaddr_ll sll;
- 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;
+ socklen_t req_sz = sizeof (tpacket_req3_t);
+ int ret;
+ int ver = TPACKET_V3;
+ u32 hdrlen = 0;
+ u32 len = sizeof (hdrlen);
+ u32 ring_sz = 0;
+
+ if (rx_req)
+ ring_sz += rx_req->tp_block_size * rx_req->tp_block_nr;
+
+ if (tx_req)
+ ring_sz += tx_req->tp_block_size * tx_req->tp_block_nr;
if ((*fd = socket (AF_PACKET, SOCK_RAW, htons (ETH_P_ALL))) < 0)
{
- vlib_log_debug (apm->log_class,
- "Failed to create AF_PACKET socket: %s (errno %d)",
- strerror (errno), errno);
+ vlib_log_err (apm->log_class,
+ "Failed to create AF_PACKET socket: %s (errno %d)",
+ strerror (errno), errno);
ret = VNET_API_ERROR_SYSCALL_ERROR_1;
goto error;
}
sll.sll_ifindex = host_if_index;
if (bind (*fd, (struct sockaddr *) &sll, sizeof (sll)) < 0)
{
- vlib_log_debug (apm->log_class,
- "Failed to bind rx packet socket: %s (errno %d)",
- strerror (errno), errno);
+ vlib_log_err (apm->log_class,
+ "Failed to bind rx packet socket: %s (errno %d)",
+ strerror (errno), errno);
ret = VNET_API_ERROR_SYSCALL_ERROR_1;
goto error;
}
if (setsockopt (*fd, SOL_PACKET, PACKET_VERSION, &ver, sizeof (ver)) < 0)
{
- vlib_log_debug (apm->log_class,
- "Failed to set rx packet interface version: %s (errno %d)",
- strerror (errno), errno);
+ vlib_log_err (apm->log_class,
+ "Failed to set rx packet interface version: %s (errno %d)",
+ strerror (errno), errno);
ret = VNET_API_ERROR_SYSCALL_ERROR_1;
goto error;
}
- int opt = 1;
- if (setsockopt (*fd, SOL_PACKET, PACKET_LOSS, &opt, sizeof (opt)) < 0)
+ if (getsockopt (*fd, SOL_PACKET, PACKET_HDRLEN, &hdrlen, &len) < 0)
{
- vlib_log_debug (apm->log_class,
- "Failed to set packet tx ring error handling option: %s (errno %d)",
- strerror (errno), errno);
+ vlib_log_err (
+ apm->log_class,
+ "Failed to get packet hdr len error handling option: %s (errno %d)",
+ strerror (errno), errno);
ret = VNET_API_ERROR_SYSCALL_ERROR_1;
goto error;
}
+ else
+ *hdrlen_ptr = hdrlen;
- if (setsockopt (*fd, SOL_PACKET, PACKET_RX_RING, rx_req, req_sz) < 0)
+ int opt = 1;
+ if (setsockopt (*fd, SOL_PACKET, PACKET_LOSS, &opt, sizeof (opt)) < 0)
{
- vlib_log_debug (apm->log_class,
- "Failed to set packet rx ring options: %s (errno %d)",
- strerror (errno), errno);
+ vlib_log_err (
+ apm->log_class,
+ "Failed to set packet tx ring error handling option: %s (errno %d)",
+ strerror (errno), errno);
ret = VNET_API_ERROR_SYSCALL_ERROR_1;
goto error;
}
- if (setsockopt (*fd, SOL_PACKET, PACKET_TX_RING, tx_req, req_sz) < 0)
+ int opt2 = 1;
+ if (setsockopt (*fd, SOL_PACKET, PACKET_VNET_HDR, &opt2, sizeof (opt2)) < 0)
+ {
+ vlib_log_debug (
+ apm->log_class,
+ "Failed to set packet vnet hdr error handling option: %s (errno %d)",
+ strerror (errno), errno);
+ }
+ else
+ *is_cksum_gso_enabled = 1;
+
+#if defined(PACKET_QDISC_BYPASS)
+ /* Introduced with Linux 3.14 so the ifdef should eventually be removed */
+ if (setsockopt (*fd, SOL_PACKET, PACKET_QDISC_BYPASS, &opt, sizeof (opt)) <
+ 0)
{
vlib_log_debug (apm->log_class,
- "Failed to set packet tx ring options: %s (errno %d)",
+ "Failed to set qdisc bypass error "
+ "handling option: %s (errno %d)",
strerror (errno), errno);
- ret = VNET_API_ERROR_SYSCALL_ERROR_1;
- goto error;
}
+#endif
- *ring =
- mmap (NULL, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_LOCKED, *fd,
- 0);
- if (*ring == MAP_FAILED)
+ if (is_fanout)
{
- vlib_log_debug (apm->log_class, "mmap failure: %s (errno %d)",
+ int fanout = ((fanout_id & 0xffff) | ((PACKET_FANOUT_HASH) << 16));
+ if (setsockopt (*fd, SOL_PACKET, PACKET_FANOUT, &fanout,
+ sizeof (fanout)) < 0)
+ {
+ vlib_log_err (apm->log_class,
+ "Failed to set fanout options: %s (errno %d)",
+ strerror (errno), errno);
+ ret = VNET_API_ERROR_SYSCALL_ERROR_1;
+ goto error;
+ }
+ }
+
+ if (rx_req)
+ if (setsockopt (*fd, SOL_PACKET, PACKET_RX_RING, rx_req, req_sz) < 0)
+ {
+ vlib_log_err (apm->log_class,
+ "Failed to set packet rx ring options: %s (errno %d)",
+ strerror (errno), errno);
+ ret = VNET_API_ERROR_SYSCALL_ERROR_1;
+ goto error;
+ }
+
+ if (tx_req)
+ if (setsockopt (*fd, SOL_PACKET, PACKET_TX_RING, tx_req, req_sz) < 0)
+ {
+ vlib_log_err (apm->log_class,
+ "Failed to set packet tx ring options: %s (errno %d)",
strerror (errno), errno);
+ ret = VNET_API_ERROR_SYSCALL_ERROR_1;
+ goto error;
+ }
+
+ ring->ring_start_addr = mmap (NULL, ring_sz, PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_LOCKED, *fd, 0);
+ if (ring->ring_start_addr == MAP_FAILED)
+ {
+ vlib_log_err (apm->log_class, "mmap failure: %s (errno %d)",
+ strerror (errno), errno);
ret = VNET_API_ERROR_SYSCALL_ERROR_1;
goto error;
}
+ ring->ring_size = ring_sz;
+
return 0;
error:
if (*fd >= 0)
}
int
-af_packet_create_if (vlib_main_t * vm, u8 * host_if_name, u8 * hw_addr_set,
- u32 * sw_if_index)
+af_packet_queue_init (vlib_main_t *vm, af_packet_if_t *apif,
+ af_packet_create_if_arg_t *arg,
+ af_packet_queue_t *rx_queue, af_packet_queue_t *tx_queue,
+ u8 queue_id, u8 is_fanout)
+{
+ af_packet_main_t *apm = &af_packet_main;
+ tpacket_req3_t *rx_req = 0;
+ tpacket_req3_t *tx_req = 0;
+ int ret, fd = -1;
+ af_packet_ring_t ring = { 0 };
+ u8 *ring_addr = 0;
+ u32 rx_frames_per_block, tx_frames_per_block;
+ u32 rx_frame_size, tx_frame_size;
+ u32 hdrlen = 0;
+ u32 i = 0;
+ u8 is_cksum_gso_enabled = 0;
+
+ if (rx_queue)
+ {
+ rx_frames_per_block = arg->rx_frames_per_block ?
+ arg->rx_frames_per_block :
+ AF_PACKET_DEFAULT_RX_FRAMES_PER_BLOCK;
+
+ rx_frame_size = arg->rx_frame_size ? arg->rx_frame_size :
+ AF_PACKET_DEFAULT_RX_FRAME_SIZE;
+ vec_validate (rx_queue->rx_req, 0);
+ rx_queue->rx_req->tp_block_size = rx_frame_size * rx_frames_per_block;
+ rx_queue->rx_req->tp_frame_size = rx_frame_size;
+ rx_queue->rx_req->tp_block_nr = AF_PACKET_RX_BLOCK_NR;
+ rx_queue->rx_req->tp_frame_nr =
+ AF_PACKET_RX_BLOCK_NR * rx_frames_per_block;
+ rx_queue->rx_req->tp_retire_blk_tov = 1; // 1 ms block timout
+ rx_queue->rx_req->tp_feature_req_word = 0;
+ rx_queue->rx_req->tp_sizeof_priv = 0;
+ rx_req = rx_queue->rx_req;
+ }
+
+ if (tx_queue)
+ {
+ tx_frames_per_block = arg->tx_frames_per_block ?
+ arg->tx_frames_per_block :
+ AF_PACKET_DEFAULT_TX_FRAMES_PER_BLOCK;
+ tx_frame_size = arg->tx_frame_size ? arg->tx_frame_size :
+ AF_PACKET_DEFAULT_TX_FRAME_SIZE;
+
+ vec_validate (tx_queue->tx_req, 0);
+ tx_queue->tx_req->tp_block_size = tx_frame_size * tx_frames_per_block;
+ tx_queue->tx_req->tp_frame_size = tx_frame_size;
+ tx_queue->tx_req->tp_block_nr = AF_PACKET_TX_BLOCK_NR;
+ tx_queue->tx_req->tp_frame_nr =
+ AF_PACKET_TX_BLOCK_NR * tx_frames_per_block;
+ tx_queue->tx_req->tp_retire_blk_tov = 0;
+ tx_queue->tx_req->tp_sizeof_priv = 0;
+ tx_queue->tx_req->tp_feature_req_word = 0;
+ tx_req = tx_queue->tx_req;
+ }
+
+ ret = create_packet_v3_sock (apif->host_if_index, rx_req, tx_req, &fd, &ring,
+ &hdrlen, &is_cksum_gso_enabled,
+ apif->dev_instance, is_fanout);
+
+ if (ret != 0)
+ goto error;
+
+ vec_add1 (apif->rings, ring);
+ ring_addr = ring.ring_start_addr;
+
+ if (rx_queue)
+ {
+ rx_queue->fd = fd;
+ vec_validate (rx_queue->rx_ring, rx_queue->rx_req->tp_block_nr - 1);
+ vec_foreach_index (i, rx_queue->rx_ring)
+ {
+ rx_queue->rx_ring[i] =
+ ring_addr + i * rx_queue->rx_req->tp_block_size;
+ }
+
+ rx_queue->next_rx_block = 0;
+ rx_queue->queue_id = queue_id;
+ rx_queue->is_rx_pending = 0;
+ ring_addr = ring_addr + rx_queue->rx_req->tp_block_size *
+ rx_queue->rx_req->tp_block_nr;
+ }
+
+ if (tx_queue)
+ {
+ tx_queue->fd = fd;
+ vec_validate (tx_queue->tx_ring, tx_queue->tx_req->tp_block_nr - 1);
+ vec_foreach_index (i, tx_queue->tx_ring)
+ {
+ tx_queue->tx_ring[i] =
+ ring_addr + i * tx_queue->tx_req->tp_block_size;
+ }
+
+ tx_queue->next_tx_frame = 0;
+ tx_queue->queue_id = queue_id;
+ clib_spinlock_init (&tx_queue->lockp);
+ }
+
+ if (queue_id == 0)
+ {
+ apif->hdrlen = hdrlen;
+ apif->is_cksum_gso_enabled = is_cksum_gso_enabled;
+ }
+
+ return 0;
+error:
+ vlib_log_err (apm->log_class, "Failed to set queue %u error", queue_id);
+ vec_free (rx_queue->rx_req);
+ vec_free (tx_queue->tx_req);
+ return ret;
+}
+
+int
+af_packet_device_init (vlib_main_t *vm, af_packet_if_t *apif,
+ af_packet_create_if_arg_t *args)
+{
+ af_packet_main_t *apm = &af_packet_main;
+ af_packet_queue_t *rx_queue = 0;
+ af_packet_queue_t *tx_queue = 0;
+ u16 nq = clib_min (args->num_rxqs, args->num_txqs);
+ u16 i = 0;
+ int ret = 0;
+ u8 is_fanout = (args->num_rxqs > 1) ? 1 : 0;
+
+ vec_validate (apif->rx_queues, args->num_rxqs - 1);
+ vec_validate (apif->tx_queues, args->num_txqs - 1);
+
+ for (; i < nq; i++)
+ {
+ rx_queue = vec_elt_at_index (apif->rx_queues, i);
+ tx_queue = vec_elt_at_index (apif->tx_queues, i);
+ ret = af_packet_queue_init (vm, apif, args, rx_queue, tx_queue, i,
+ is_fanout);
+ if (ret != 0)
+ goto error;
+ }
+
+ if (args->num_rxqs > args->num_txqs)
+ {
+ for (; i < args->num_rxqs; i++)
+ {
+ rx_queue = vec_elt_at_index (apif->rx_queues, i);
+ ret =
+ af_packet_queue_init (vm, apif, args, rx_queue, 0, i, is_fanout);
+ if (ret != 0)
+ goto error;
+ }
+ }
+ else if (args->num_txqs > args->num_rxqs)
+ {
+ for (; i < args->num_txqs; i++)
+ {
+ tx_queue = vec_elt_at_index (apif->tx_queues, i);
+ ret = af_packet_queue_init (vm, apif, args, 0, tx_queue, i, 0);
+ if (ret != 0)
+ goto error;
+ }
+ }
+
+ apif->num_rxqs = args->num_rxqs;
+ apif->num_txqs = args->num_txqs;
+
+ return 0;
+error:
+ vlib_log_err (apm->log_class, "Failed to init device error");
+ return ret;
+}
+
+int
+af_packet_create_if (af_packet_create_if_arg_t *arg)
{
af_packet_main_t *apm = &af_packet_main;
- int ret, fd = -1, fd2 = -1;
- struct tpacket_req *rx_req = 0;
- struct tpacket_req *tx_req = 0;
+ vlib_main_t *vm = vlib_get_main ();
+ int fd2 = -1;
struct ifreq ifr;
- u8 *ring = 0;
af_packet_if_t *apif = 0;
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 ();
+ vnet_hw_if_caps_t caps = VNET_HW_IF_CAP_INT_MODE;
uword *p;
uword if_index;
u8 *host_if_name_dup = 0;
int host_if_index = -1;
+ int ret = 0;
- p = mhash_get (&apm->if_index_by_host_if_name, host_if_name);
+ p = mhash_get (&apm->if_index_by_host_if_name, arg->host_if_name);
if (p)
{
apif = vec_elt_at_index (apm->interfaces, p[0]);
- *sw_if_index = apif->sw_if_index;
+ arg->sw_if_index = apif->sw_if_index;
return VNET_API_ERROR_IF_ALREADY_EXISTS;
}
- host_if_name_dup = vec_dup (host_if_name);
-
- vec_validate (rx_req, 0);
- rx_req->tp_block_size = AF_PACKET_RX_BLOCK_SIZE;
- rx_req->tp_frame_size = AF_PACKET_RX_FRAME_SIZE;
- rx_req->tp_block_nr = AF_PACKET_RX_BLOCK_NR;
- rx_req->tp_frame_nr = AF_PACKET_RX_FRAME_NR;
-
- vec_validate (tx_req, 0);
- tx_req->tp_block_size = AF_PACKET_TX_BLOCK_SIZE;
- tx_req->tp_frame_size = AF_PACKET_TX_FRAME_SIZE;
- tx_req->tp_block_nr = AF_PACKET_TX_BLOCK_NR;
- tx_req->tp_frame_nr = AF_PACKET_TX_FRAME_NR;
+ host_if_name_dup = vec_dup (arg->host_if_name);
/*
* make sure host side of interface is 'UP' before binding AF_PACKET
goto error;
}
- clib_memcpy (ifr.ifr_name, (const char *) host_if_name,
- vec_len (host_if_name));
+ clib_memcpy (ifr.ifr_name, (const char *) arg->host_if_name,
+ vec_len (arg->host_if_name));
if (ioctl (fd2, SIOCGIFINDEX, &ifr) < 0)
{
- vlib_log_debug (apm->log_class,
- "Failed to retrieve the interface (%s) index: %s (errno %d)",
- host_if_name, strerror (errno), errno);
+ vlib_log_debug (
+ apm->log_class,
+ "Failed to retrieve the interface (%s) index: %s (errno %d)",
+ arg->host_if_name, strerror (errno), errno);
ret = VNET_API_ERROR_INVALID_INTERFACE;
goto error;
}
fd2 = -1;
}
- 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);
-
+ ret = is_bridge (arg->host_if_name);
if (ret == 0) /* is a bridge, ignore state */
host_if_index = -1;
pool_get (apm->interfaces, apif);
if_index = apif - apm->interfaces;
+ apif->dev_instance = if_index;
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->rx_req = rx_req;
- apif->tx_req = tx_req;
apif->host_if_name = host_if_name_dup;
apif->per_interface_next_index = ~0;
- apif->next_tx_frame = 0;
- apif->next_rx_frame = 0;
-
- if (tm->n_vlib_mains > 1)
- clib_spinlock_init (&apif->lockp);
-
- {
- 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;
- template.description = format (0, "%U", format_af_packet_device_name,
- if_index);
- apif->clib_file_index = clib_file_add (&file_main, &template);
- }
-
- /*use configured or generate random MAC address */
- if (hw_addr_set)
- clib_memcpy (hw_addr, hw_addr_set, 6);
- else
- {
- f64 now = vlib_time_now (vm);
- u32 rnd;
- rnd = (u32) (now * 1e6);
- rnd = random_u32 (&rnd);
+ apif->mode = arg->mode;
- clib_memcpy (hw_addr + 2, &rnd, sizeof (rnd));
- hw_addr[0] = 2;
- hw_addr[1] = 0xfe;
- }
+ ret = af_packet_device_init (vm, apif, arg);
+ if (ret != 0)
+ goto error;
+
+ ret = af_packet_read_mtu (apif);
+ if (ret != 0)
+ goto error;
- error = ethernet_register_interface (vnm, af_packet_device_class.index,
- if_index, hw_addr, &apif->hw_if_index,
- af_packet_eth_flag_change);
- if (error)
+ if (apif->mode != AF_PACKET_IF_MODE_IP)
{
- clib_memset (apif, 0, sizeof (*apif));
- pool_put (apm->interfaces, apif);
- vlib_log_err (apm->log_class, "Unable to register interface: %U",
- format_clib_error, error);
- clib_error_free (error);
- ret = VNET_API_ERROR_SYSCALL_ERROR_1;
- goto error;
+ vnet_eth_interface_registration_t eir = {};
+ /*use configured or generate random MAC address */
+ if (arg->hw_addr)
+ clib_memcpy (hw_addr, arg->hw_addr, 6);
+ else
+ {
+ f64 now = vlib_time_now (vm);
+ u32 rnd;
+ rnd = (u32) (now * 1e6);
+ rnd = random_u32 (&rnd);
+
+ clib_memcpy (hw_addr + 2, &rnd, sizeof (rnd));
+ hw_addr[0] = 2;
+ hw_addr[1] = 0xfe;
+ }
+
+ eir.dev_class_index = af_packet_device_class.index;
+ eir.dev_instance = apif->dev_instance;
+ eir.address = hw_addr;
+ eir.cb.set_max_frame_size = af_packet_eth_set_max_frame_size;
+ apif->hw_if_index = vnet_eth_register_interface (vnm, &eir);
+ }
+ else
+ {
+ apif->hw_if_index = vnet_register_interface (
+ vnm, af_packet_device_class.index, apif->dev_instance,
+ af_packet_ip_device_hw_interface_class.index, apif->dev_instance);
}
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 */ );
+ af_packet_set_rx_queues (vm, apif);
+ af_packet_set_tx_queues (vm, apif);
+
+ if (apif->is_cksum_gso_enabled)
+ caps |= VNET_HW_IF_CAP_TCP_GSO | VNET_HW_IF_CAP_TX_IP4_CKSUM |
+ VNET_HW_IF_CAP_TX_TCP_CKSUM | VNET_HW_IF_CAP_TX_UDP_CKSUM;
- hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
+ vnet_hw_if_set_caps (vnm, apif->hw_if_index, caps);
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_IF_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;
+ arg->sw_if_index = apif->sw_if_index;
return 0;
fd2 = -1;
}
vec_free (host_if_name_dup);
- vec_free (rx_req);
- vec_free (tx_req);
+ memset (apif, 0, sizeof (*apif));
+ pool_put (apm->interfaces, apif);
return ret;
}
+static int
+af_packet_rx_queue_free (af_packet_if_t *apif, af_packet_queue_t *rx_queue)
+{
+ clib_file_del_by_index (&file_main, rx_queue->clib_file_index);
+ close (rx_queue->fd);
+ rx_queue->fd = -1;
+ rx_queue->rx_ring = NULL;
+ vec_free (rx_queue->rx_req);
+ rx_queue->rx_req = NULL;
+ return 0;
+}
+
+static int
+af_packet_tx_queue_free (af_packet_if_t *apif, af_packet_queue_t *tx_queue)
+{
+ close (tx_queue->fd);
+ tx_queue->fd = -1;
+ clib_spinlock_free (&tx_queue->lockp);
+ tx_queue->tx_ring = NULL;
+ vec_free (tx_queue->tx_req);
+ tx_queue->tx_req = NULL;
+ return 0;
+}
+
+static int
+af_packet_ring_free (af_packet_if_t *apif, af_packet_ring_t *ring)
+{
+ af_packet_main_t *apm = &af_packet_main;
+
+ if (ring)
+ {
+ // FIXME: unmap the memory
+ if (munmap (ring->ring_start_addr, ring->ring_size))
+ vlib_log_warn (apm->log_class,
+ "Host interface %s could not free ring %p of size %u",
+ apif->host_if_name, ring->ring_start_addr,
+ ring->ring_size);
+ else
+ ring->ring_start_addr = 0;
+ }
+
+ return 0;
+}
+
int
-af_packet_delete_if (vlib_main_t * vm, u8 * host_if_name)
+af_packet_delete_if (u8 *host_if_name)
{
vnet_main_t *vnm = vnet_get_main ();
af_packet_main_t *apm = &af_packet_main;
af_packet_if_t *apif;
+ af_packet_queue_t *rx_queue;
+ af_packet_queue_t *tx_queue;
+ af_packet_ring_t *ring;
uword *p;
- uword if_index;
- u32 ring_sz;
p = mhash_get (&apm->if_index_by_host_if_name, host_if_name);
if (p == NULL)
return VNET_API_ERROR_SYSCALL_ERROR_1;
}
apif = pool_elt_at_index (apm->interfaces, p[0]);
- if_index = apif - apm->interfaces;
/* 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->clib_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);
-
- ring_sz = apif->rx_req->tp_block_size * apif->rx_req->tp_block_nr +
- apif->tx_req->tp_block_size * apif->tx_req->tp_block_nr;
- if (munmap (apif->rx_ring, ring_sz))
- vlib_log_warn (apm->log_class,
- "Host interface %s could not free rx/tx ring",
- host_if_name);
- apif->rx_ring = NULL;
- apif->tx_ring = NULL;
- apif->fd = -1;
-
- vec_free (apif->rx_req);
- apif->rx_req = NULL;
- vec_free (apif->tx_req);
- apif->tx_req = NULL;
+ vec_foreach (rx_queue, apif->rx_queues)
+ af_packet_rx_queue_free (apif, rx_queue);
+ vec_foreach (tx_queue, apif->tx_queues)
+ af_packet_tx_queue_free (apif, tx_queue);
+ vec_foreach (ring, apif->rings)
+ af_packet_ring_free (apif, ring);
+
+ vec_free (apif->rx_queues);
+ apif->rx_queues = NULL;
+ vec_free (apif->tx_queues);
+ apif->tx_queues = NULL;
+ vec_free (apif->rings);
+ apif->rings = NULL;
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);
+ mhash_unset (&apm->if_index_by_host_if_name, host_if_name, p);
- ethernet_delete_interface (vnm, apif->hw_if_index);
+ if (apif->mode != AF_PACKET_IF_MODE_IP)
+ ethernet_delete_interface (vnm, apif->hw_if_index);
+ else
+ vnet_delete_hw_interface (vnm, apif->hw_if_index);
+ memset (apif, 0, sizeof (*apif));
pool_put (apm->interfaces, apif);
return 0;
}
int
-af_packet_set_l4_cksum_offload (vlib_main_t * vm, u32 sw_if_index, u8 set)
+af_packet_set_l4_cksum_offload (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 (hw->dev_class_index != af_packet_device_class.index)
- return VNET_API_ERROR_INVALID_INTERFACE;
-
- 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;
-
+ // deprecated ...
return 0;
}
af_packet_if_detail_t *r_af_packet_ifs = NULL;
af_packet_if_detail_t *af_packet_if = NULL;
- /* *INDENT-OFF* */
pool_foreach (apif, apm->interfaces)
{
vec_add2 (r_af_packet_ifs, af_packet_if, 1);
strlen ((const char *) apif->host_if_name)));
}
}
- /* *INDENT-ON* */
*out_af_packet_ifs = r_af_packet_ifs;
Code Review / vpp.git / blobdiff