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#ifndef COMMON_MBUF_H
#define COMMON_MBUF_H
/*
Copyright (c) 2016-2016 Cisco Systems, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
static inline rte_mbuf_t * utl_rte_pktmbuf_add_after2(rte_mbuf_t *m1,rte_mbuf_t *m2){
utl_rte_pktmbuf_check(m1);
utl_rte_pktmbuf_check(m2);
m1->next=m2;
m1->pkt_len += m2->data_len;
m1->nb_segs = m2->nb_segs + 1;
return (m1);
}
static inline rte_mbuf_t * utl_rte_pktmbuf_add_after(rte_mbuf_t *m1,rte_mbuf_t *m2){
utl_rte_pktmbuf_check(m1);
utl_rte_pktmbuf_check(m2);
rte_mbuf_refcnt_update(m2,1);
m1->next=m2;
m1->pkt_len += m2->data_len;
m1->nb_segs = m2->nb_segs + 1;
return (m1);
}
static inline void utl_rte_pktmbuf_add_last(rte_mbuf_t *m,rte_mbuf_t *m_last){
//there could be 2 cases supported
//1. one mbuf
//2. two mbug where last is indirect
if ( m->next == NULL ) {
utl_rte_pktmbuf_add_after2(m,m_last);
}else{
m->next->next=m_last;
m->pkt_len += m_last->data_len;
m->nb_segs = 3;
}
}
// Create following m_buf structure:
// base -> indirect -> last
// Read only is the direct of indirect.
static inline rte_mbuf_t * utl_rte_pktmbuf_chain_with_indirect (rte_mbuf_t *base, rte_mbuf_t *indirect
, rte_mbuf_t *read_only, rte_mbuf_t *last) {
rte_pktmbuf_attach(indirect, read_only);
base->next = indirect;
indirect->next = last;
rte_pktmbuf_refcnt_update(read_only, -1);
base->nb_segs = 3;
indirect->nb_segs = 2;
last->nb_segs = 1;
return base;
}
rte_mempool_t * utl_rte_mempool_create(const char *name,
unsigned n,
unsigned elt_size,
unsigned cache_size,
uint32_t _id ,
int socket_id
);
rte_mempool_t * utl_rte_mempool_create_non_pkt(const char *name,
unsigned n,
unsigned elt_size,
unsigned cache_size,
uint32_t _id ,
int socket_id);
#endif
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