interface: fix the incorrect sizes/offsets in the tso segmentation
The copying of the first segment copied too small amount of data.
The copying of the second and subsequent segments used the wrong
data offset - for the case of GSO enabled it starts from 12 bytes
earlier.
Change-Id: I3adc532c175babc1ca1e121c7e12e6cafbdb9974
Type: fix
Ticket: VPP-1700
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
diff --git a/src/vnet/interface_output.c b/src/vnet/interface_output.c
index 28f44c3..2a41271 100644
--- a/src/vnet/interface_output.c
+++ b/src/vnet/interface_output.c
@@ -352,7 +352,7 @@
vlib_buffer_t *b0 = vlib_get_buffer (vm, ptd->split_buffers[0]);
tso_init_buf_from_template_base (b0, sb0, default_bflags,
- l4_hdr_sz + first_data_size);
+ l234_sz + first_data_size);
u32 total_src_left = n_bytes_b0 - l234_sz - first_data_size;
if (total_src_left)
@@ -410,7 +410,7 @@
csbi0 = next_bi;
csb0 = vlib_get_buffer (vm, csbi0);
src_left = csb0->current_length;
- src_ptr = csb0->data;
+ src_ptr = vlib_buffer_get_current (csb0);
}
else
{