static void
dp_packet_init__(struct dp_packet *b, size_t allocated, enum dp_packet_source source)
{
dp_packet_set_allocated(b, allocated);
b->source = source;
dp_packet_reset_offsets(b);
pkt_metadata_init(&b->md, 0);
}
static void
dp_packet_init__(struct dp_packet *b, size_t allocated, enum dp_packet_source source)
{
dp_packet_set_allocated(b, allocated);
b->source = source;
dp_packet_reset_offsets(b);
pkt_metadata_init(&b->md, 0);
dp_packet_rss_invalidate(b);
dp_packet_reset_cutlen(b);
/* By default assume the packet type to be Ethernet. */
b->packet_type = htonl(PT_ETH);
}
/* Reallocates 'b' so that it has exactly 'new_headroom' and 'new_tailroom'
* bytes of headroom and tailroom, respectively. */
static void
dp_packet_resize__(struct dp_packet *b, size_t new_headroom, size_t new_tailroom)
{
void *new_base, *new_data;
size_t new_allocated;
new_allocated = new_headroom + dp_packet_size(b) + new_tailroom;
switch (b->source) {
case DPBUF_DPDK:
OVS_NOT_REACHED();
case DPBUF_MALLOC:
if (new_headroom == dp_packet_headroom(b)) {
new_base = xrealloc(dp_packet_base(b), new_allocated);
} else {
new_base = xmalloc(new_allocated);
dp_packet_copy__(b, new_base, new_headroom, new_tailroom);
free(dp_packet_base(b));
}
break;
case DPBUF_STACK:
OVS_NOT_REACHED();
case DPBUF_STUB:
b->source = DPBUF_MALLOC;
new_base = xmalloc(new_allocated);
dp_packet_copy__(b, new_base, new_headroom, new_tailroom);
break;
default:
OVS_NOT_REACHED();
}
dp_packet_set_allocated(b, new_allocated);
dp_packet_set_base(b, new_base);
new_data = (char *) new_base + new_headroom;
if (dp_packet_data(b) != new_data) {
dp_packet_set_data(b, new_data);
}
}
