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-rw-r--r--src/vnet/unix/tapcli.c90
-rw-r--r--src/vnet/unix/tuntap.c74
2 files changed, 99 insertions, 65 deletions
diff --git a/src/vnet/unix/tapcli.c b/src/vnet/unix/tapcli.c
index ce386094c6e..d80cca3df4f 100644
--- a/src/vnet/unix/tapcli.c
+++ b/src/vnet/unix/tapcli.c
@@ -96,19 +96,25 @@ u8 * format_tapcli_rx_trace (u8 * s, va_list * va)
}
/**
- * @brief TAPCLI main state struct
+ * @brief TAPCLI per thread struct
*/
-typedef struct {
- /** Vector of iovecs for readv calls. */
- struct iovec * rd_iovecs;
-
- /** Vector of iovecs for writev calls. */
- struct iovec * wr_iovecs;
-
+typedef struct
+{
/** Vector of VLIB rx buffers to use. We allocate them in blocks
of VLIB_FRAME_SIZE (256). */
u32 * rx_buffers;
+ /** Vector of iovecs for readv/writev calls. */
+ struct iovec * iovecs;
+} tapcli_per_thread_t;
+
+/**
+ * @brief TAPCLI main state struct
+ */
+typedef struct {
+ /** per thread variables */
+ tapcli_per_thread_t * threads;
+
/** tap device destination MAC address. Required, or Linux drops pkts */
u8 ether_dst_mac[6];
@@ -168,6 +174,7 @@ tapcli_tx (vlib_main_t * vm,
tapcli_main_t * tm = &tapcli_main;
tapcli_interface_t * ti;
int i;
+ u16 thread_index = vlib_get_thread_index ();
for (i = 0; i < n_packets; i++)
{
@@ -202,11 +209,11 @@ tapcli_tx (vlib_main_t * vm,
ti = vec_elt_at_index (tm->tapcli_interfaces, p[0]);
/* Re-set iovecs if present. */
- if (tm->wr_iovecs)
- _vec_len (tm->wr_iovecs) = 0;
+ if (tm->threads[thread_index].iovecs)
+ _vec_len (tm->threads[thread_index].iovecs) = 0;
/* VLIB buffer chain -> Unix iovec(s). */
- vec_add2 (tm->wr_iovecs, iov, 1);
+ vec_add2 (tm->threads[thread_index].iovecs, iov, 1);
iov->iov_base = b->data + b->current_data;
iov->iov_len = l = b->current_length;
@@ -215,7 +222,7 @@ tapcli_tx (vlib_main_t * vm,
do {
b = vlib_get_buffer (vm, b->next_buffer);
- vec_add2 (tm->wr_iovecs, iov, 1);
+ vec_add2 (tm->threads[thread_index].iovecs, iov, 1);
iov->iov_base = b->data + b->current_data;
iov->iov_len = b->current_length;
@@ -223,7 +230,8 @@ tapcli_tx (vlib_main_t * vm,
} while (b->flags & VLIB_BUFFER_NEXT_PRESENT);
}
- if (writev (ti->unix_fd, tm->wr_iovecs, vec_len (tm->wr_iovecs)) < l)
+ if (writev (ti->unix_fd, tm->threads[thread_index].iovecs,
+ vec_len (tm->threads[thread_index].iovecs)) < l)
clib_unix_warning ("writev");
}
@@ -258,7 +266,7 @@ static uword tapcli_rx_iface(vlib_main_t * vm,
const uword buffer_size = VLIB_BUFFER_DATA_SIZE;
u32 n_trace = vlib_get_trace_count (vm, node);
u8 set_trace = 0;
-
+ u16 thread_index = vlib_get_thread_index ();
vnet_main_t *vnm;
vnet_sw_interface_t * si;
u8 admin_down;
@@ -278,31 +286,35 @@ static uword tapcli_rx_iface(vlib_main_t * vm,
word n_bytes_in_packet;
int j, n_bytes_left;
- if (PREDICT_FALSE(vec_len(tm->rx_buffers) < tm->mtu_buffers)) {
- uword len = vec_len(tm->rx_buffers);
- _vec_len(tm->rx_buffers) +=
- vlib_buffer_alloc_from_free_list(vm, &tm->rx_buffers[len],
+ if (PREDICT_FALSE(vec_len(tm->threads[thread_index].rx_buffers) <
+ tm->mtu_buffers)) {
+ uword len = vec_len(tm->threads[thread_index].rx_buffers);
+ _vec_len(tm->threads[thread_index].rx_buffers) +=
+ vlib_buffer_alloc_from_free_list(vm, &tm->threads[thread_index].rx_buffers[len],
VLIB_FRAME_SIZE - len, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
- if (PREDICT_FALSE(vec_len(tm->rx_buffers) < tm->mtu_buffers)) {
+ if (PREDICT_FALSE(vec_len(tm->threads[thread_index].rx_buffers) <
+ tm->mtu_buffers)) {
vlib_node_increment_counter(vm, tapcli_rx_node.index,
TAPCLI_ERROR_BUFFER_ALLOC,
- tm->mtu_buffers - vec_len(tm->rx_buffers));
+ tm->mtu_buffers -
+ vec_len(tm->threads[thread_index].rx_buffers));
break;
}
}
- uword i_rx = vec_len (tm->rx_buffers) - 1;
+ uword i_rx = vec_len (tm->threads[thread_index].rx_buffers) - 1;
/* Allocate RX buffers from end of rx_buffers.
Turn them into iovecs to pass to readv. */
- vec_validate (tm->rd_iovecs, tm->mtu_buffers - 1);
+ vec_validate (tm->threads[thread_index].iovecs, tm->mtu_buffers - 1);
for (j = 0; j < tm->mtu_buffers; j++) {
- b = vlib_get_buffer (vm, tm->rx_buffers[i_rx - j]);
- tm->rd_iovecs[j].iov_base = b->data;
- tm->rd_iovecs[j].iov_len = buffer_size;
+ b = vlib_get_buffer (vm, tm->threads[thread_index].rx_buffers[i_rx - j]);
+ tm->threads[thread_index].iovecs[j].iov_base = b->data;
+ tm->threads[thread_index].iovecs[j].iov_len = buffer_size;
}
- n_bytes_left = readv (ti->unix_fd, tm->rd_iovecs, tm->mtu_buffers);
+ n_bytes_left = readv (ti->unix_fd, tm->threads[thread_index].iovecs,
+ tm->mtu_buffers);
n_bytes_in_packet = n_bytes_left;
if (n_bytes_left <= 0) {
if (errno != EAGAIN) {
@@ -312,8 +324,9 @@ static uword tapcli_rx_iface(vlib_main_t * vm,
break;
}
- bi_first = tm->rx_buffers[i_rx];
- b = b_first = vlib_get_buffer (vm, tm->rx_buffers[i_rx]);
+ bi_first = tm->threads[thread_index].rx_buffers[i_rx];
+ b = b_first = vlib_get_buffer (vm,
+ tm->threads[thread_index].rx_buffers[i_rx]);
prev = NULL;
while (1) {
@@ -331,11 +344,11 @@ static uword tapcli_rx_iface(vlib_main_t * vm,
break;
i_rx--;
- bi = tm->rx_buffers[i_rx];
+ bi = tm->threads[thread_index].rx_buffers[i_rx];
b = vlib_get_buffer (vm, bi);
}
- _vec_len (tm->rx_buffers) = i_rx;
+ _vec_len (tm->threads[thread_index].rx_buffers) = i_rx;
b_first->total_length_not_including_first_buffer =
(n_bytes_in_packet > buffer_size) ? n_bytes_in_packet - buffer_size : 0;
@@ -367,7 +380,7 @@ static uword tapcli_rx_iface(vlib_main_t * vm,
vlib_increment_combined_counter (
vnet_main.interface_main.combined_sw_if_counters
+ VNET_INTERFACE_COUNTER_RX,
- vlib_get_thread_index(), ti->sw_if_index,
+ thread_index, ti->sw_if_index,
1, n_bytes_in_packet);
if (PREDICT_FALSE(n_trace > 0)) {
@@ -1453,16 +1466,25 @@ clib_error_t *
tapcli_init (vlib_main_t * vm)
{
tapcli_main_t * tm = &tapcli_main;
+ vlib_thread_main_t * m = vlib_get_thread_main ();
+ tapcli_per_thread_t * thread;
tm->vlib_main = vm;
tm->vnet_main = vnet_get_main();
tm->mtu_bytes = TAP_MTU_DEFAULT;
tm->tapcli_interface_index_by_sw_if_index = hash_create (0, sizeof(uword));
tm->tapcli_interface_index_by_unix_fd = hash_create (0, sizeof (uword));
- tm->rx_buffers = 0;
- vec_alloc(tm->rx_buffers, VLIB_FRAME_SIZE);
- vec_reset_length(tm->rx_buffers);
vm->os_punt_frame = tapcli_nopunt_frame;
+ vec_validate_aligned (tm->threads, m->n_vlib_mains - 1,
+ CLIB_CACHE_LINE_BYTES);
+ vec_foreach (thread, tm->threads)
+ {
+ thread->iovecs = 0;
+ thread->rx_buffers = 0;
+ vec_alloc(thread->rx_buffers, VLIB_FRAME_SIZE);
+ vec_reset_length(thread->rx_buffers);
+ }
+
return 0;
}
diff --git a/src/vnet/unix/tuntap.c b/src/vnet/unix/tuntap.c
index dc5c2a890d8..6e2a53fefd2 100644
--- a/src/vnet/unix/tuntap.c
+++ b/src/vnet/unix/tuntap.c
@@ -68,19 +68,25 @@ typedef struct {
} subif_address_t;
/**
- * @brief TUNTAP node main state
+ * @brief TUNTAP per thread struct
*/
-typedef struct {
- /** Vector of iovecs for readv calls. */
- struct iovec * rd_iovecs;
-
- /** Vector of iovecs for writev calls. */
- struct iovec * wr_iovecs;
-
+typedef struct
+{
/** Vector of VLIB rx buffers to use. We allocate them in blocks
of VLIB_FRAME_SIZE (256). */
u32 * rx_buffers;
+ /** Vector of iovecs for readv/writev calls. */
+ struct iovec * iovecs;
+} tuntap_per_thread_t;
+
+/**
+ * @brief TUNTAP node main state
+ */
+typedef struct {
+ /** per thread variables */
+ tuntap_per_thread_t * threads;
+
/** File descriptors for /dev/net/tun and provisioning socket. */
int dev_net_tun_fd, dev_tap_fd;
@@ -147,6 +153,7 @@ tuntap_tx (vlib_main_t * vm,
vnet_interface_main_t *im = &vnm->interface_main;
u32 n_bytes = 0;
int i;
+ u16 thread_index = vlib_get_thread_index ();
for (i = 0; i < n_packets; i++)
{
@@ -163,11 +170,11 @@ tuntap_tx (vlib_main_t * vm,
}
/* Re-set iovecs if present. */
- if (tm->wr_iovecs)
- _vec_len (tm->wr_iovecs) = 0;
+ if (tm->threads[thread_index].iovecs)
+ _vec_len (tm->threads[thread_index].iovecs) = 0;
/** VLIB buffer chain -> Unix iovec(s). */
- vec_add2 (tm->wr_iovecs, iov, 1);
+ vec_add2 (tm->threads[thread_index].iovecs, iov, 1);
iov->iov_base = b->data + b->current_data;
iov->iov_len = l = b->current_length;
@@ -176,7 +183,7 @@ tuntap_tx (vlib_main_t * vm,
do {
b = vlib_get_buffer (vm, b->next_buffer);
- vec_add2 (tm->wr_iovecs, iov, 1);
+ vec_add2 (tm->threads[thread_index].iovecs, iov, 1);
iov->iov_base = b->data + b->current_data;
iov->iov_len = b->current_length;
@@ -184,8 +191,8 @@ tuntap_tx (vlib_main_t * vm,
} while (b->flags & VLIB_BUFFER_NEXT_PRESENT);
}
- if (writev (tm->dev_net_tun_fd, tm->wr_iovecs,
- vec_len (tm->wr_iovecs)) < l)
+ if (writev (tm->dev_net_tun_fd, tm->threads[thread_index].iovecs,
+ vec_len (tm->threads[thread_index].iovecs)) < l)
clib_unix_warning ("writev");
n_bytes += l;
@@ -234,41 +241,43 @@ tuntap_rx (vlib_main_t * vm,
vlib_buffer_t * b;
u32 bi;
const uword buffer_size = VLIB_BUFFER_DATA_SIZE;
+ u16 thread_index = vlib_get_thread_index ();
/** Make sure we have some RX buffers. */
{
- uword n_left = vec_len (tm->rx_buffers);
+ uword n_left = vec_len (tm->threads[thread_index].rx_buffers);
uword n_alloc;
if (n_left < VLIB_FRAME_SIZE / 2)
{
- if (! tm->rx_buffers)
- vec_alloc (tm->rx_buffers, VLIB_FRAME_SIZE);
+ if (! tm->threads[thread_index].rx_buffers)
+ vec_alloc (tm->threads[thread_index].rx_buffers, VLIB_FRAME_SIZE);
- n_alloc = vlib_buffer_alloc (vm, tm->rx_buffers + n_left, VLIB_FRAME_SIZE - n_left);
- _vec_len (tm->rx_buffers) = n_left + n_alloc;
+ n_alloc = vlib_buffer_alloc (vm, tm->threads[thread_index].rx_buffers + n_left, VLIB_FRAME_SIZE - n_left);
+ _vec_len (tm->threads[thread_index].rx_buffers) = n_left + n_alloc;
}
}
/** Allocate RX buffers from end of rx_buffers.
Turn them into iovecs to pass to readv. */
{
- uword i_rx = vec_len (tm->rx_buffers) - 1;
+ uword i_rx = vec_len (tm->threads[thread_index].rx_buffers) - 1;
vlib_buffer_t * b;
word i, n_bytes_left, n_bytes_in_packet;
/** We should have enough buffers left for an MTU sized packet. */
- ASSERT (vec_len (tm->rx_buffers) >= tm->mtu_buffers);
+ ASSERT (vec_len (tm->threads[thread_index].rx_buffers) >= tm->mtu_buffers);
- vec_validate (tm->rd_iovecs, tm->mtu_buffers - 1);
+ vec_validate (tm->threads[thread_index].iovecs, tm->mtu_buffers - 1);
for (i = 0; i < tm->mtu_buffers; i++)
{
- b = vlib_get_buffer (vm, tm->rx_buffers[i_rx - i]);
- tm->rd_iovecs[i].iov_base = b->data;
- tm->rd_iovecs[i].iov_len = buffer_size;
+ b = vlib_get_buffer (vm, tm->threads[thread_index].rx_buffers[i_rx - i]);
+ tm->threads[thread_index].iovecs[i].iov_base = b->data;
+ tm->threads[thread_index].iovecs[i].iov_len = buffer_size;
}
- n_bytes_left = readv (tm->dev_net_tun_fd, tm->rd_iovecs, tm->mtu_buffers);
+ n_bytes_left = readv (tm->dev_net_tun_fd, tm->threads[thread_index].iovecs,
+ tm->mtu_buffers);
n_bytes_in_packet = n_bytes_left;
if (n_bytes_left <= 0)
{
@@ -277,11 +286,11 @@ tuntap_rx (vlib_main_t * vm,
return 0;
}
- bi = tm->rx_buffers[i_rx];
+ bi = tm->threads[thread_index].rx_buffers[i_rx];
while (1)
{
- b = vlib_get_buffer (vm, tm->rx_buffers[i_rx]);
+ b = vlib_get_buffer (vm, tm->threads[thread_index].rx_buffers[i_rx]);
b->flags = 0;
b->current_data = 0;
b->current_length = n_bytes_left < buffer_size ? n_bytes_left : buffer_size;
@@ -295,18 +304,18 @@ tuntap_rx (vlib_main_t * vm,
i_rx--;
b->flags |= VLIB_BUFFER_NEXT_PRESENT;
- b->next_buffer = tm->rx_buffers[i_rx];
+ b->next_buffer = tm->threads[thread_index].rx_buffers[i_rx];
}
/** Interface counters for tuntap interface. */
vlib_increment_combined_counter
(vnet_main.interface_main.combined_sw_if_counters
+ VNET_INTERFACE_COUNTER_RX,
- vlib_get_thread_index(),
+ thread_index,
tm->sw_if_index,
1, n_bytes_in_packet);
- _vec_len (tm->rx_buffers) = i_rx;
+ _vec_len (tm->threads[thread_index].rx_buffers) = i_rx;
}
b = vlib_get_buffer (vm, bi);
@@ -1004,6 +1013,7 @@ tuntap_init (vlib_main_t * vm)
ip4_add_del_interface_address_callback_t cb4;
ip6_add_del_interface_address_callback_t cb6;
tuntap_main_t * tm = &tuntap_main;
+ vlib_thread_main_t * m = vlib_get_thread_main ();
error = vlib_call_init_function (vm, ip4_init);
if (error)
@@ -1018,6 +1028,8 @@ tuntap_init (vlib_main_t * vm)
cb6.function = tuntap_ip6_add_del_interface_address;
cb6.function_opaque = 0;
vec_add1 (im6->add_del_interface_address_callbacks, cb6);
+ vec_validate_aligned (tm->threads, m->n_vlib_mains - 1,
+ CLIB_CACHE_LINE_BYTES);
return 0;
}