buffers: make buffer data size configurable from startup config
Example:
buffers {
default data-size 1536
}
Change-Id: I5b4436850ca18025c9fdcfc7ed648c2c2732d660
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/src/vnet/devices/af_packet/node.c b/src/vnet/devices/af_packet/node.c
index 243a38a..2fa7708 100644
--- a/src/vnet/devices/af_packet/node.c
+++ b/src/vnet/devices/af_packet/node.c
@@ -192,7 +192,7 @@
u8 *block_start = apif->rx_ring + block * block_size;
uword n_trace = vlib_get_trace_count (vm, node);
u32 thread_index = vm->thread_index;
- u32 n_buffer_bytes = VLIB_BUFFER_DATA_SIZE;
+ u32 n_buffer_bytes = vlib_bufer_get_default_size (vm);
u32 min_bufs = apif->rx_req->tp_frame_size / n_buffer_bytes;
if (apif->per_interface_next_index != ~0)
diff --git a/src/vnet/devices/netmap/node.c b/src/vnet/devices/netmap/node.c
index 577d4a3..122d8c3 100644
--- a/src/vnet/devices/netmap/node.c
+++ b/src/vnet/devices/netmap/node.c
@@ -99,7 +99,7 @@
struct netmap_ring *ring;
int cur_ring;
u32 thread_index = vm->thread_index;
- u32 n_buffer_bytes = VLIB_BUFFER_DATA_SIZE;
+ u32 n_buffer_bytes = vlib_bufer_get_default_size (vm);
if (nif->per_interface_next_index != ~0)
next_index = nif->per_interface_next_index;
diff --git a/src/vnet/devices/virtio/node.c b/src/vnet/devices/virtio/node.c
index 78d071a..fc369e5 100644
--- a/src/vnet/devices/virtio/node.c
+++ b/src/vnet/devices/virtio/node.c
@@ -120,7 +120,7 @@
((vif->type == VIRTIO_IF_TYPE_PCI) ? vlib_buffer_get_current_pa (vm,
b) :
pointer_to_uword (vlib_buffer_get_current (b)));
- d->len = VLIB_BUFFER_DATA_SIZE + hdr_sz;
+ d->len = vlib_bufer_get_default_size (vm) + hdr_sz;
d->flags = VRING_DESC_F_WRITE;
vring->avail->ring[avail & mask] = next;
avail++;
diff --git a/src/vnet/devices/virtio/vhost_user_input.c b/src/vnet/devices/virtio/vhost_user_input.c
index 812f9d3..465ec44 100644
--- a/src/vnet/devices/virtio/vhost_user_input.c
+++ b/src/vnet/devices/virtio/vhost_user_input.c
@@ -501,7 +501,7 @@
/* Get more output if necessary. Or end of packet. */
if (PREDICT_FALSE
- (b_current->current_length == VLIB_BUFFER_DATA_SIZE))
+ (b_current->current_length == vlib_bufer_get_default_size (vm)))
{
if (PREDICT_FALSE (cpu->rx_buffers_len == 0))
{
@@ -534,7 +534,8 @@
vhost_copy_t *cpy = &cpu->copy[copy_len];
copy_len++;
u32 desc_data_l = desc_table[desc_current].len - desc_data_offset;
- cpy->len = VLIB_BUFFER_DATA_SIZE - b_current->current_length;
+ cpy->len =
+ vlib_bufer_get_default_size (vm) - b_current->current_length;
cpy->len = (cpy->len > desc_data_l) ? desc_data_l : cpy->len;
cpy->dst = (uword) (vlib_buffer_get_current (b_current) +
b_current->current_length);
diff --git a/src/vnet/dhcp/dhcp6_proxy_node.c b/src/vnet/dhcp/dhcp6_proxy_node.c
index 92e011b..e4464e0 100644
--- a/src/vnet/dhcp/dhcp6_proxy_node.c
+++ b/src/vnet/dhcp/dhcp6_proxy_node.c
@@ -316,7 +316,7 @@
link_address_set:
if ((b0->current_length + sizeof (*id1) + sizeof (*vss1) +
- sizeof (*cmac)) > VLIB_BUFFER_DATA_SIZE)
+ sizeof (*cmac)) > vlib_bufer_get_default_size (vm))
{
error0 = DHCPV6_PROXY_ERROR_PKT_TOO_BIG;
next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
diff --git a/src/vnet/ip/ip_frag.c b/src/vnet/ip/ip_frag.c
index de29776..6ecaa3c 100644
--- a/src/vnet/ip/ip_frag.c
+++ b/src/vnet/ip/ip_frag.c
@@ -106,7 +106,8 @@
rem = clib_net_to_host_u16 (ip4->length) - sizeof (ip4_header_t);
max =
- (clib_min (mtu, VLIB_BUFFER_DATA_SIZE) - sizeof (ip4_header_t)) & ~0x7;
+ (clib_min (mtu, vlib_bufer_get_default_size (vm)) -
+ sizeof (ip4_header_t)) & ~0x7;
if (rem >
(vlib_buffer_length_in_chain (vm, from_b) - sizeof (ip4_header_t)))
diff --git a/src/vnet/ip/ping.c b/src/vnet/ip/ping.c
index 890285f..90314b5 100755
--- a/src/vnet/ip/ping.c
+++ b/src/vnet/ip/ping.c
@@ -388,7 +388,7 @@
int l34_len =
l4_header_offset + sizeof (icmp46_header_t) +
offsetof (icmp46_echo_request_t, data);
- int max_data_len = VLIB_BUFFER_DATA_SIZE - l34_len;
+ int max_data_len = vlib_bufer_get_default_size (vm) - l34_len;
int first_buf_data_len = data_len < max_data_len ? data_len : max_data_len;
@@ -403,7 +403,8 @@
{
int this_buf_data_len =
remaining_data_len <
- VLIB_BUFFER_DATA_SIZE ? remaining_data_len : VLIB_BUFFER_DATA_SIZE;
+ vlib_bufer_get_default_size (vm) ? remaining_data_len :
+ vlib_bufer_get_default_size (vm);
int n_alloc = vlib_buffer_alloc (vm, &b0->next_buffer, 1);
if (n_alloc < 1)
{
diff --git a/src/vnet/ip/punt.c b/src/vnet/ip/punt.c
index 65e62c0..8331a87 100644
--- a/src/vnet/ip/punt.c
+++ b/src/vnet/ip/punt.c
@@ -497,7 +497,7 @@
static uword
punt_socket_rx_fd (vlib_main_t * vm, vlib_node_runtime_t * node, u32 fd)
{
- const uword buffer_size = VLIB_BUFFER_DATA_SIZE;
+ const uword buffer_size = vlib_bufer_get_default_size (vm);
u32 n_trace = vlib_get_trace_count (vm, node);
u32 next = node->cached_next_index;
u32 n_left_to_next, next_index;
diff --git a/src/vnet/ipfix-export/flow_report.c b/src/vnet/ipfix-export/flow_report.c
index da91a7c..9d0834b 100644
--- a/src/vnet/ipfix-export/flow_report.c
+++ b/src/vnet/ipfix-export/flow_report.c
@@ -121,7 +121,7 @@
/* Initialize the buffer */
VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0);
- ASSERT (vec_len (fr->rewrite) < VLIB_BUFFER_DATA_SIZE);
+ ASSERT (vec_len (fr->rewrite) < vlib_bufer_get_default_size (vm));
clib_memcpy_fast (b0->data, fr->rewrite, vec_len (fr->rewrite));
b0->current_data = 0;
diff --git a/src/vnet/pg/cli.c b/src/vnet/pg/cli.c
index bca0551..4053887 100644
--- a/src/vnet/pg/cli.c
+++ b/src/vnet/pg/cli.c
@@ -341,7 +341,7 @@
s.sw_if_index[VLIB_RX] = s.sw_if_index[VLIB_TX] = ~0;
s.node_index = ~0;
s.max_packet_bytes = s.min_packet_bytes = 64;
- s.buffer_bytes = VLIB_BUFFER_DATA_SIZE;
+ s.buffer_bytes = vlib_bufer_get_default_size (vm);
s.if_id = 0;
pcap_file_name = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
diff --git a/src/vnet/pg/input.c b/src/vnet/pg/input.c
index 6088b91..6ef813f 100644
--- a/src/vnet/pg/input.c
+++ b/src/vnet/pg/input.c
@@ -1199,6 +1199,7 @@
u32 *buffers;
vlib_main_t *vm = vlib_get_main ();
vnet_main_t *vnm = vnet_get_main ();
+ u32 buf_sz = vlib_bufer_get_default_size (vm);
vnet_interface_main_t *im = &vnm->interface_main;
vnet_sw_interface_t *si;
@@ -1216,8 +1217,7 @@
u8 *d0;
d0 = vec_elt (s->replay_packet_templates, i);
- buffer_alloc_request += (vec_len (d0) + (VLIB_BUFFER_DATA_SIZE - 1))
- / VLIB_BUFFER_DATA_SIZE;
+ buffer_alloc_request += (vec_len (d0) + (buf_sz - 1)) / buf_sz;
i = ((i + 1) == l) ? 0 : i + 1;
n_left--;
@@ -1261,7 +1261,7 @@
/* Copy the data */
while (bytes_to_copy)
{
- bytes_this_chunk = clib_min (bytes_to_copy, VLIB_BUFFER_DATA_SIZE);
+ bytes_this_chunk = clib_min (bytes_to_copy, buf_sz);
ASSERT (current_buffer_index < vec_len (buffers));
b = vlib_get_buffer (vm, buffers[current_buffer_index]);
clib_memcpy_fast (b->data, d0 + data_offset, bytes_this_chunk);
diff --git a/src/vnet/pg/stream.c b/src/vnet/pg/stream.c
index c91caca..ba24912 100644
--- a/src/vnet/pg/stream.c
+++ b/src/vnet/pg/stream.c
@@ -437,7 +437,7 @@
{
int n;
- s->buffer_bytes = VLIB_BUFFER_DATA_SIZE;
+ s->buffer_bytes = vlib_bufer_get_default_size (vm);
n = s->max_packet_bytes / s->buffer_bytes;
n += (s->max_packet_bytes % s->buffer_bytes) != 0;
diff --git a/src/vnet/sctp/sctp.c b/src/vnet/sctp/sctp.c
index d0e28c5..21cc78b 100644
--- a/src/vnet/sctp/sctp.c
+++ b/src/vnet/sctp/sctp.c
@@ -892,7 +892,7 @@
vec_validate (tm->ip_lookup_tx_frames[0], num_threads - 1);
vec_validate (tm->ip_lookup_tx_frames[1], num_threads - 1);
- tm->bytes_per_buffer = VLIB_BUFFER_DATA_SIZE;
+ tm->bytes_per_buffer = vlib_bufer_get_default_size (vm);
vec_validate (tm->time_now, num_threads - 1);
return error;
diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index 286bd7b..09adc59 100644
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -605,7 +605,7 @@
ctx->max_len_to_snd = max_segs * ctx->snd_mss;
}
- n_bytes_per_buf = VLIB_BUFFER_DATA_SIZE;
+ n_bytes_per_buf = vlib_bufer_get_default_size (vm);
ASSERT (n_bytes_per_buf > TRANSPORT_MAX_HDRS_LEN);
n_bytes_per_seg = TRANSPORT_MAX_HDRS_LEN + ctx->snd_mss;
ctx->n_bufs_per_seg = ceil ((f64) n_bytes_per_seg / n_bytes_per_buf);
diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c
index 5fdeec6..ee5f275 100644
--- a/src/vnet/tcp/tcp.c
+++ b/src/vnet/tcp/tcp.c
@@ -1476,7 +1476,7 @@
tcp_initialize_timer_wheels (tm);
tcp_initialize_iss_seed (tm);
- tm->bytes_per_buffer = VLIB_BUFFER_DATA_SIZE;
+ tm->bytes_per_buffer = vlib_bufer_get_default_size (vm);
return error;
}
diff --git a/src/vnet/unix/tuntap.c b/src/vnet/unix/tuntap.c
index e002a24..ce7b260 100644
--- a/src/vnet/unix/tuntap.c
+++ b/src/vnet/unix/tuntap.c
@@ -243,7 +243,7 @@
tuntap_main_t *tm = &tuntap_main;
vlib_buffer_t *b;
u32 bi;
- const uword buffer_size = VLIB_BUFFER_DATA_SIZE;
+ const uword buffer_size = vlib_bufer_get_default_size (vm);
u16 thread_index = vm->thread_index;
/** Make sure we have some RX buffers. */
@@ -490,7 +490,7 @@
u8 *name;
int flags = IFF_TUN | IFF_NO_PI;
int is_enabled = 0, is_ether = 0, have_normal_interface = 0;
- const uword buffer_size = VLIB_BUFFER_DATA_SIZE;
+ const uword buffer_size = vlib_bufer_get_default_size (vm);
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{