diff options
author | Konstantin Ananyev <konstantin.ananyev@intel.com> | 2017-02-21 18:12:20 +0000 |
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committer | Konstantin Ananyev <konstantin.ananyev@intel.com> | 2017-02-24 16:37:08 +0000 |
commit | aa97dd1ce910b839fed46ad55d1e70e403f5a930 (patch) | |
tree | f6f0fd494eaf499859bff9f20f5ddfac9ab99233 /lib/libtle_l4p/tcp_ofo.c | |
parent | f5f10013ffef8e4ac1071087b8492fe6380d98fe (diff) |
Introduce first version of TCP code.
Supported functionality:
- open/close
- listen/accept/connect
- send/recv
In order to achieve that libtle_udp library was
reworked into libtle_l4p library that supports
both TCP and UDP protocols.
New libtle_timer library was introduced
(thanks to Cisco guys and Dave Barach <dbarach@cisco.com>
for sharing their timer code with us).
Sample application was also reworked significantly
to support both TCP and UDP traffic handling.
New UT were introduced.
Change-Id: I806b05011f521e89b58db403cfdd484a37beb775
Signed-off-by: Mohammad Abdul Awal <mohammad.abdul.awal@intel.com>
Signed-off-by: Karol Latecki <karolx.latecki@intel.com>
Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod@intel.com>
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Diffstat (limited to 'lib/libtle_l4p/tcp_ofo.c')
-rw-r--r-- | lib/libtle_l4p/tcp_ofo.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/lib/libtle_l4p/tcp_ofo.c b/lib/libtle_l4p/tcp_ofo.c new file mode 100644 index 0000000..1565445 --- /dev/null +++ b/lib/libtle_l4p/tcp_ofo.c @@ -0,0 +1,85 @@ +/* + * 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. + */ +#include <rte_malloc.h> +#include <rte_errno.h> + +#include "tcp_stream.h" +#include "tcp_rxq.h" + +#define OFO_FRACTION 4 + +#define OFO_DB_MAX 0x20U + +#define OFODB_OBJ_MIN 8U +#define OFODB_OBJ_MAX 0x20U + +#define OFO_OBJ_MAX (OFODB_OBJ_MAX * OFO_DB_MAX) + +void +tcp_ofo_free(struct ofo *ofo) +{ + rte_free(ofo); +} + +static void +calc_ofo_elems(uint32_t nbufs, uint32_t *nobj, uint32_t *ndb) +{ + uint32_t n, nd, no; + + n = nbufs / OFO_FRACTION; + n = RTE_MAX(n, OFODB_OBJ_MIN); + n = RTE_MIN(n, OFO_OBJ_MAX); + + no = OFODB_OBJ_MIN / 2; + do { + no *= 2; + nd = n / no; + } while (nd > OFO_DB_MAX); + + *nobj = no; + *ndb = nd; +} + +struct ofo * +tcp_ofo_alloc(uint32_t nbufs, int32_t socket) +{ + uint32_t i, ndb, nobj; + size_t dsz, osz, sz; + struct ofo *ofo; + struct rte_mbuf **obj; + + calc_ofo_elems(nbufs, &nobj, &ndb); + osz = sizeof(*ofo) + sizeof(ofo->db[0]) * ndb; + dsz = sizeof(ofo->db[0].obj[0]) * nobj * ndb; + sz = osz + dsz; + + ofo = rte_zmalloc_socket(NULL, sz, RTE_CACHE_LINE_SIZE, socket); + if (ofo == NULL) { + TCP_LOG(ERR, "%s: allocation of %zu bytes on socket %d " + "failed with error code: %d\n", + __func__, sz, socket, rte_errno); + return NULL; + } + + obj = (struct rte_mbuf **)&ofo->db[ndb]; + for (i = 0; i != ndb; i++) { + ofo->db[i].nb_max = nobj; + ofo->db[i].obj = obj + i * nobj; + } + + ofo->nb_max = ndb; + return ofo; +} + |