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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 PKT_DPDK_LEGACY_H_
#define PKT_DPDK_LEGACY_H_
#include "dpdk_version.h"
struct ptype2cb {
uint32_t mask;
const char *name;
rte_rx_callback_fn fn;
};
enum {
ETHER_PTYPE = 0x1,
IPV4_PTYPE = 0x2,
IPV4_EXT_PTYPE = 0x4,
IPV6_PTYPE = 0x8,
IPV6_EXT_PTYPE = 0x10,
TCP_PTYPE = 0x20,
UDP_PTYPE = 0x40,
};
#ifdef DPDK_VERSION_GE_1604
static uint32_t
get_ptypes(const struct netbe_port *uprt)
{
uint32_t smask;
int32_t i, rc;
const uint32_t pmask = RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK |
RTE_PTYPE_L4_MASK;
smask = 0;
rc = rte_eth_dev_get_supported_ptypes(uprt->id, pmask, NULL, 0);
if (rc < 0) {
RTE_LOG(ERR, USER1,
"%s(port=%u) failed to get supported ptypes;\n",
__func__, uprt->id);
return smask;
}
uint32_t ptype[rc];
rc = rte_eth_dev_get_supported_ptypes(uprt->id, pmask, ptype, rc);
for (i = 0; i != rc; i++) {
switch (ptype[i]) {
case RTE_PTYPE_L2_ETHER:
smask |= ETHER_PTYPE;
break;
case RTE_PTYPE_L3_IPV4:
case RTE_PTYPE_L3_IPV4_EXT_UNKNOWN:
smask |= IPV4_PTYPE;
break;
case RTE_PTYPE_L3_IPV4_EXT:
smask |= IPV4_EXT_PTYPE;
break;
case RTE_PTYPE_L3_IPV6:
case RTE_PTYPE_L3_IPV6_EXT_UNKNOWN:
smask |= IPV6_PTYPE;
break;
case RTE_PTYPE_L3_IPV6_EXT:
smask |= IPV6_EXT_PTYPE;
break;
case RTE_PTYPE_L4_TCP:
smask |= TCP_PTYPE;
break;
case RTE_PTYPE_L4_UDP:
smask |= UDP_PTYPE;
break;
}
}
return smask;
}
#else
static uint32_t
get_ptypes(__rte_unused const struct netbe_port *uprt)
{
return 0;
}
#endif /* DPDK_VERSION_GE_1604 */
int
setup_rx_cb(const struct netbe_port *uprt, struct netbe_lcore *lc,
uint16_t qid, uint32_t arp)
{
int32_t rc;
uint32_t i, n, smask;
void *cb;
const struct ptype2cb *ptype2cb;
static const struct ptype2cb tcp_ptype2cb[] = {
{
.mask = ETHER_PTYPE | IPV4_PTYPE | IPV4_EXT_PTYPE |
IPV6_PTYPE | IPV6_EXT_PTYPE | TCP_PTYPE,
.name = "HW l2/l3x/l4-tcp ptype",
.fn = type0_tcp_rx_callback,
},
{
.mask = ETHER_PTYPE | IPV4_PTYPE | IPV6_PTYPE |
TCP_PTYPE,
.name = "HW l2/l3/l4-tcp ptype",
.fn = type1_tcp_rx_callback,
},
{
.mask = 0,
.name = "tcp no HW ptype",
.fn = typen_tcp_rx_callback,
},
};
static const struct ptype2cb tcp_arp_ptype2cb[] = {
{
.mask = 0,
.name = "tcp with arp no HW ptype",
.fn = typen_tcp_arp_rx_callback,
},
};
static const struct ptype2cb udp_ptype2cb[] = {
{
.mask = ETHER_PTYPE | IPV4_PTYPE | IPV4_EXT_PTYPE |
IPV6_PTYPE | IPV6_EXT_PTYPE | UDP_PTYPE,
.name = "HW l2/l3x/l4-udp ptype",
.fn = type0_udp_rx_callback,
},
{
.mask = ETHER_PTYPE | IPV4_PTYPE | IPV6_PTYPE |
UDP_PTYPE,
.name = "HW l2/l3/l4-udp ptype",
.fn = type1_udp_rx_callback,
},
{
.mask = 0,
.name = "udp no HW ptype",
.fn = typen_udp_rx_callback,
},
};
smask = get_ptypes(uprt);
if (lc->proto == TLE_PROTO_TCP) {
if (arp != 0) {
ptype2cb = tcp_arp_ptype2cb;
n = RTE_DIM(tcp_arp_ptype2cb);
} else {
ptype2cb = tcp_ptype2cb;
n = RTE_DIM(tcp_ptype2cb);
}
} else if (lc->proto == TLE_PROTO_UDP) {
ptype2cb = udp_ptype2cb;
n = RTE_DIM(udp_ptype2cb);
} else {
RTE_LOG(ERR, USER1,
"%s(lc=%u) unsupported proto: %u\n",
__func__, lc->id, lc->proto);
return -EINVAL;
}
for (i = 0; i != n; i++) {
if ((smask & ptype2cb[i].mask) == ptype2cb[i].mask) {
cb = rte_eth_add_rx_callback(uprt->id, qid,
ptype2cb[i].fn, lc);
rc = -rte_errno;
RTE_LOG(ERR, USER1,
"%s(port=%u), setup RX callback \"%s\" "
"returns %p;\n",
__func__, uprt->id, ptype2cb[i].name, cb);
return ((cb == NULL) ? rc : 0);
}
}
/* no proper callback found. */
RTE_LOG(ERR, USER1,
"%s(port=%u) failed to find an appropriate callback;\n",
__func__, uprt->id);
return -ENOENT;
}
#endif /* PKT_DPDK_LEGACY_H_ */
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