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/*
* Copyright (c) 2016 Intel Corporation.
* 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.
*/
#ifndef MAIN_DPDK_LEGACY_H_
#define MAIN_DPDK_LEGACY_H_
#include "dpdk_version.h"
/*
* UDP IPv4 destination lookup callback.
*/
static int
lpm4_dst_lookup(void *data, const struct in_addr *addr,
struct tle_dest *res)
{
int32_t rc;
#ifdef DPDK_VERSION_GE_1604
uint32_t idx;
#else
uint8_t idx;
#endif
struct netbe_lcore *lc;
struct tle_dest *dst;
lc = data;
rc = rte_lpm_lookup(lc->lpm4, rte_be_to_cpu_32(addr->s_addr), &idx);
if (rc == 0) {
dst = &lc->dst4[idx];
rte_memcpy(res, dst, dst->l2_len + dst->l3_len +
offsetof(struct tle_dest, hdr));
}
return rc;
}
static int
lcore_lpm_init(struct netbe_lcore *lc)
{
int32_t sid;
char str[RTE_LPM_NAMESIZE];
#ifdef DPDK_VERSION_GE_1604
const struct rte_lpm_config lpm4_cfg = {
.max_rules = MAX_RULES,
.number_tbl8s = MAX_TBL8,
};
#endif
const struct rte_lpm6_config lpm6_cfg = {
.max_rules = MAX_RULES,
.number_tbl8s = MAX_TBL8,
};
sid = rte_lcore_to_socket_id(lc->id);
snprintf(str, sizeof(str), "LPM4%u\n", lc->id);
#ifdef DPDK_VERSION_GE_1604
lc->lpm4 = rte_lpm_create(str, sid, &lpm4_cfg);
#else
lc->lpm4 = rte_lpm_create(str, sid, MAX_RULES, 0);
#endif
RTE_LOG(NOTICE, USER1, "%s(lcore=%u): lpm4=%p;\n",
__func__, lc->id, lc->lpm4);
if (lc->lpm4 == NULL)
return -ENOMEM;
snprintf(str, sizeof(str), "LPM6%u\n", lc->id);
lc->lpm6 = rte_lpm6_create(str, sid, &lpm6_cfg);
RTE_LOG(NOTICE, USER1, "%s(lcore=%u): lpm6=%p;\n",
__func__, lc->id, lc->lpm6);
if (lc->lpm6 == NULL)
return -ENOMEM;
return 0;
}
/*
* Helper functions, finds BE by given local and remote addresses.
*/
static int
netbe_find4(const struct in_addr *laddr, const uint16_t lport,
const struct in_addr *raddr, const uint32_t belc)
{
uint32_t i, j;
#ifdef DPDK_VERSION_GE_1604
uint32_t idx;
#else
uint8_t idx;
#endif
struct netbe_lcore *bc;
/* we have exactly one BE, use it for all traffic */
if (becfg.cpu_num == 1)
return 0;
/* search by provided be_lcore */
if (belc != LCORE_ID_ANY) {
for (i = 0; i != becfg.cpu_num; i++) {
bc = becfg.cpu + i;
if (belc == bc->id)
return i;
}
RTE_LOG(NOTICE, USER1, "%s: no stream with be_lcore=%u\n",
__func__, belc);
return -ENOENT;
}
/* search by local address */
if (laddr->s_addr != INADDR_ANY) {
for (i = 0; i != becfg.cpu_num; i++) {
bc = becfg.cpu + i;
/* search by queue for the local port */
for (j = 0; j != bc->prtq_num; j++) {
if (laddr->s_addr == bc->prtq[j].port.ipv4) {
if (lport == 0)
return i;
if (verify_queue_for_port(bc->prtq + j,
lport) != 0)
return i;
}
}
}
}
/* search by remote address */
if (raddr->s_addr != INADDR_ANY) {
for (i = 0; i != becfg.cpu_num; i++) {
bc = becfg.cpu + i;
if (rte_lpm_lookup(bc->lpm4,
rte_be_to_cpu_32(raddr->s_addr),
&idx) == 0) {
if (lport == 0)
return i;
/* search by queue for the local port */
for (j = 0; j != bc->prtq_num; j++)
if (verify_queue_for_port(bc->prtq + j,
lport) != 0)
return i;
}
}
}
return -ENOENT;
}
#endif /* MAIN_DPDK_LEGACY_H_ */
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