u32 flags, u16 n_bufs, u16 hdr_sz)
{
u32 i = n_bufs;
- while (i >= 4)
+ while (i >= 6)
{
/* prefetches */
CLIB_PREFETCH (bufs[2], 2 * CLIB_CACHE_LINE_BYTES, LOAD);
CLIB_PREFETCH (bufs[3], 2 * CLIB_CACHE_LINE_BYTES, LOAD);
- vlib_prefetch_buffer_data (bufs[2], LOAD);
- vlib_prefetch_buffer_data (bufs[3], LOAD);
+ vlib_prefetch_buffer_data (bufs[4], LOAD);
+ vlib_prefetch_buffer_data (bufs[5], LOAD);
/* copying objects from cacheline 0 */
bufs[0]->current_data = 0;
bufs[0]->total_length_not_including_first_buffer = 0;
bufs[1]->total_length_not_including_first_buffer = 0;
+ clib_memcpy_fast (&bufs[0]->opaque2, &b0->opaque2, sizeof (b0->opaque2));
+ clib_memcpy_fast (&bufs[1]->opaque2, &b0->opaque2, sizeof (b0->opaque2));
+
/* copying data */
clib_memcpy_fast (bufs[0]->data, vlib_buffer_get_current (b0), hdr_sz);
clib_memcpy_fast (bufs[1]->data, vlib_buffer_get_current (b0), hdr_sz);
+ /* header offset fixup */
+ vnet_buffer (bufs[0])->l2_hdr_offset -= b0->current_data;
+ vnet_buffer (bufs[0])->l3_hdr_offset -= b0->current_data;
+ vnet_buffer (bufs[0])->l4_hdr_offset -= b0->current_data;
+ vnet_buffer2 (bufs[0])->outer_l3_hdr_offset -= b0->current_data;
+ vnet_buffer2 (bufs[0])->outer_l4_hdr_offset -= b0->current_data;
+
+ vnet_buffer (bufs[1])->l2_hdr_offset -= b0->current_data;
+ vnet_buffer (bufs[1])->l3_hdr_offset -= b0->current_data;
+ vnet_buffer (bufs[1])->l4_hdr_offset -= b0->current_data;
+ vnet_buffer2 (bufs[1])->outer_l3_hdr_offset -= b0->current_data;
+ vnet_buffer2 (bufs[1])->outer_l4_hdr_offset -= b0->current_data;
+
bufs += 2;
i -= 2;
}
/* copying objects from cacheline 1 */
bufs[0]->trace_handle = b0->trace_handle;
bufs[0]->total_length_not_including_first_buffer = 0;
+ clib_memcpy_fast (&bufs[0]->opaque2, &b0->opaque2, sizeof (b0->opaque2));
/* copying data */
clib_memcpy_fast (bufs[0]->data, vlib_buffer_get_current (b0), hdr_sz);
+ /* header offset fixup */
+ vnet_buffer (bufs[0])->l2_hdr_offset -= b0->current_data;
+ vnet_buffer (bufs[0])->l3_hdr_offset -= b0->current_data;
+ vnet_buffer (bufs[0])->l4_hdr_offset -= b0->current_data;
+ vnet_buffer2 (bufs[0])->outer_l3_hdr_offset -= b0->current_data;
+ vnet_buffer2 (bufs[0])->outer_l4_hdr_offset -= b0->current_data;
+
bufs++;
i--;
}
static_always_inline void
gso_fixup_segmented_buf (vlib_main_t *vm, vlib_buffer_t *b0, u32 next_tcp_seq,
- int is_l2, int is_ip6, generic_header_offset_t *gho,
- clib_ip_csum_t *c, u8 tcp_flags)
+ int is_l2, u8 oflags, u16 hdr_sz, u16 l4_hdr_sz,
+ clib_ip_csum_t *c, u8 tcp_flags, u8 is_prefetch,
+ vlib_buffer_t *b1)
{
- ip4_header_t *ip4 =
- (ip4_header_t *) (vlib_buffer_get_current (b0) + gho->l3_hdr_offset +
- gho->outer_hdr_sz);
- ip6_header_t *ip6 =
- (ip6_header_t *) (vlib_buffer_get_current (b0) + gho->l3_hdr_offset +
- gho->outer_hdr_sz);
- tcp_header_t *tcp =
- (tcp_header_t *) (vlib_buffer_get_current (b0) + gho->l4_hdr_offset +
- gho->outer_hdr_sz);
+ i16 l3_hdr_offset = vnet_buffer (b0)->l3_hdr_offset;
+ i16 l4_hdr_offset = vnet_buffer (b0)->l4_hdr_offset;
+
+ ip4_header_t *ip4 = (ip4_header_t *) (b0->data + l3_hdr_offset);
+ ip6_header_t *ip6 = (ip6_header_t *) (b0->data + l3_hdr_offset);
+ tcp_header_t *tcp = (tcp_header_t *) (b0->data + l4_hdr_offset);
tcp->flags = tcp_flags;
tcp->seq_number = clib_host_to_net_u32 (next_tcp_seq);
c->odd = 0;
- if (is_ip6)
+ if (oflags & VNET_BUFFER_OFFLOAD_F_IP_CKSUM)
+ {
+ ip4->length =
+ clib_host_to_net_u16 (b0->current_length - hdr_sz +
+ (l4_hdr_offset - l3_hdr_offset) + l4_hdr_sz);
+ ip4->checksum = 0;
+ ip4->checksum = ip4_header_checksum (ip4);
+ vnet_buffer_offload_flags_clear (b0, (VNET_BUFFER_OFFLOAD_F_IP_CKSUM |
+ VNET_BUFFER_OFFLOAD_F_TCP_CKSUM));
+ c->sum += clib_mem_unaligned (&ip4->src_address, u32);
+ c->sum += clib_mem_unaligned (&ip4->dst_address, u32);
+ c->sum += clib_host_to_net_u32 (
+ (clib_net_to_host_u16 (ip4->length) - ip4_header_bytes (ip4)) +
+ (ip4->protocol << 16));
+ }
+ else
{
- ip6->payload_length = clib_host_to_net_u16 (
- b0->current_length - gho->l4_hdr_offset - gho->outer_hdr_sz);
+ ip6->payload_length =
+ clib_host_to_net_u16 (b0->current_length - hdr_sz + l4_hdr_sz);
vnet_buffer_offload_flags_clear (b0, VNET_BUFFER_OFFLOAD_F_TCP_CKSUM);
ip6_psh_t psh = { 0 };
u32 *p = (u32 *) &psh;
for (int i = 0; i < 10; i++)
c->sum += p[i];
}
- else
- {
- ip4->length = clib_host_to_net_u16 (
- b0->current_length - gho->l3_hdr_offset - gho->outer_hdr_sz);
- if (gho->gho_flags & GHO_F_IP4)
- ip4->checksum = ip4_header_checksum (ip4);
- vnet_buffer_offload_flags_clear (b0, (VNET_BUFFER_OFFLOAD_F_IP_CKSUM |
- VNET_BUFFER_OFFLOAD_F_TCP_CKSUM));
- c->sum += clib_mem_unaligned (&ip4->src_address, u32);
- c->sum += clib_mem_unaligned (&ip4->dst_address, u32);
- c->sum += clib_host_to_net_u32 (
- (clib_net_to_host_u16 (ip4->length) - ip4_header_bytes (ip4)) +
- (ip4->protocol << 16));
- }
- clib_ip_csum_chunk (c, (u8 *) tcp, gho->l4_hdr_sz);
+
+ if (is_prefetch)
+ CLIB_PREFETCH (vlib_buffer_get_current (b1) + hdr_sz,
+ CLIB_CACHE_LINE_BYTES, LOAD);
+
+ clib_ip_csum_chunk (c, (u8 *) tcp, l4_hdr_sz);
tcp->checksum = clib_ip_csum_fold (c);
- if (!is_l2 && ((gho->gho_flags & GHO_F_TUNNEL) == 0))
+ if (!is_l2 && ((oflags & VNET_BUFFER_OFFLOAD_F_TNL_MASK) == 0))
{
u32 adj_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX];
static_always_inline u32
gso_segment_buffer_inline (vlib_main_t *vm,
vnet_interface_per_thread_data_t *ptd,
- vlib_buffer_t *b, generic_header_offset_t *gho,
- int is_l2, int is_ip6)
+ vlib_buffer_t *b, int is_l2)
{
vlib_buffer_t **bufs = 0;
u32 n_tx_bytes = 0;
+
+ u8 oflags = vnet_buffer (b)->oflags;
+ i16 l4_hdr_offset = vnet_buffer (b)->l4_hdr_offset;
u16 gso_size = vnet_buffer2 (b)->gso_size;
+ u16 l4_hdr_sz = vnet_buffer2 (b)->gso_l4_hdr_sz;
+
u8 tcp_flags = 0, tcp_flags_no_fin_psh = 0;
u32 default_bflags =
b->flags & ~(VNET_BUFFER_F_GSO | VLIB_BUFFER_NEXT_PRESENT);
- u16 hdr_sz = gho->hdr_sz + gho->outer_hdr_sz;
+ u16 hdr_sz = (l4_hdr_offset - b->current_data) + l4_hdr_sz;
u32 next_tcp_seq = 0, tcp_seq = 0;
u32 data_size = vlib_buffer_length_in_chain (vm, b) - hdr_sz;
u16 size =
vec_validate (bufs, n_bufs - 1);
vlib_get_buffers (vm, ptd->split_buffers, bufs, n_bufs);
- tcp_header_t *tcp =
- (tcp_header_t *) (vlib_buffer_get_current (b) + gho->l4_hdr_offset +
- gho->outer_hdr_sz);
+ tcp_header_t *tcp = (tcp_header_t *) (b->data + l4_hdr_offset);
+
tcp_seq = next_tcp_seq = clib_net_to_host_u32 (tcp->seq_number);
/* store original flags for last packet and reset FIN and PSH */
tcp_flags = tcp->flags;
if (0 == dst_left && data_size)
{
vlib_prefetch_buffer_header (bufs[i + 1], LOAD);
- vlib_prefetch_buffer_data (bufs[i + 1], LOAD);
n_tx_bytes += bufs[i]->current_length;
- gso_fixup_segmented_buf (vm, bufs[i], tcp_seq, is_l2, is_ip6, gho,
- &c, tcp_flags_no_fin_psh);
+ gso_fixup_segmented_buf (vm, bufs[i], tcp_seq, is_l2, oflags, hdr_sz,
+ l4_hdr_sz, &c, tcp_flags_no_fin_psh, 1,
+ bufs[i + 1]);
i++;
dst_left = size;
dst_ptr = vlib_buffer_get_current (bufs[i]) + hdr_sz;
ASSERT ((i + 1) == n_alloc);
n_tx_bytes += bufs[i]->current_length;
- gso_fixup_segmented_buf (vm, bufs[i], tcp_seq, is_l2, is_ip6, gho, &c,
- tcp_flags);
+ gso_fixup_segmented_buf (vm, bufs[i], tcp_seq, is_l2, oflags, hdr_sz,
+ l4_hdr_sz, &c, tcp_flags, 0, NULL);
vec_free (bufs);
return n_tx_bytes;
Code Review / vpp.git / blobdiff