diff options
Diffstat (limited to 'src/vnet/devices/dpdk/dpdk_api.c')
| -rw-r--r-- | src/vnet/devices/dpdk/dpdk_api.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/src/vnet/devices/dpdk/dpdk_api.c b/src/vnet/devices/dpdk/dpdk_api.c new file mode 100644 index 00000000000..8faf5c2cbc4 --- /dev/null +++ b/src/vnet/devices/dpdk/dpdk_api.c @@ -0,0 +1,246 @@ +/* + *------------------------------------------------------------------ + * dpdk_api.c - dpdk interface api + * + * Copyright (c) 2016 Cisco and/or its affiliates. + * 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 <vnet/vnet.h> +#include <vlibmemory/api.h> + +#if DPDK > 0 +#include <vnet/devices/dpdk/dpdk.h> +#endif + +#include <vnet/vnet_msg_enum.h> + +#define vl_typedefs /* define message structures */ +#include <vnet/vnet_all_api_h.h> +#undef vl_typedefs + +#define vl_endianfun /* define message structures */ +#include <vnet/vnet_all_api_h.h> +#undef vl_endianfun + +/* instantiate all the print functions we know about */ +#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__) +#define vl_printfun +#include <vnet/vnet_all_api_h.h> +#undef vl_printfun + +#include <vlibapi/api_helper_macros.h> + +#define foreach_vpe_api_msg \ +_(SW_INTERFACE_SET_DPDK_HQOS_PIPE, sw_interface_set_dpdk_hqos_pipe) \ +_(SW_INTERFACE_SET_DPDK_HQOS_SUBPORT, sw_interface_set_dpdk_hqos_subport) \ +_(SW_INTERFACE_SET_DPDK_HQOS_TCTBL, sw_interface_set_dpdk_hqos_tctbl) + +static void + vl_api_sw_interface_set_dpdk_hqos_pipe_t_handler + (vl_api_sw_interface_set_dpdk_hqos_pipe_t * mp) +{ + vl_api_sw_interface_set_dpdk_hqos_pipe_reply_t *rmp; + int rv = 0; + +#if DPDK > 0 + dpdk_main_t *dm = &dpdk_main; + dpdk_device_t *xd; + + u32 sw_if_index = ntohl (mp->sw_if_index); + u32 subport = ntohl (mp->subport); + u32 pipe = ntohl (mp->pipe); + u32 profile = ntohl (mp->profile); + vnet_hw_interface_t *hw; + + VALIDATE_SW_IF_INDEX (mp); + + /* hw_if & dpdk device */ + hw = vnet_get_sup_hw_interface (dm->vnet_main, sw_if_index); + + xd = vec_elt_at_index (dm->devices, hw->dev_instance); + + rv = rte_sched_pipe_config (xd->hqos_ht->hqos, subport, pipe, profile); + + BAD_SW_IF_INDEX_LABEL; +#else + clib_warning ("setting HQoS pipe parameters without DPDK not implemented"); + rv = VNET_API_ERROR_UNIMPLEMENTED; +#endif /* DPDK */ + + REPLY_MACRO (VL_API_SW_INTERFACE_SET_DPDK_HQOS_PIPE_REPLY); +} + +static void + vl_api_sw_interface_set_dpdk_hqos_subport_t_handler + (vl_api_sw_interface_set_dpdk_hqos_subport_t * mp) +{ + vl_api_sw_interface_set_dpdk_hqos_subport_reply_t *rmp; + int rv = 0; + +#if DPDK > 0 + dpdk_main_t *dm = &dpdk_main; + dpdk_device_t *xd; + struct rte_sched_subport_params p; + + u32 sw_if_index = ntohl (mp->sw_if_index); + u32 subport = ntohl (mp->subport); + p.tb_rate = ntohl (mp->tb_rate); + p.tb_size = ntohl (mp->tb_size); + p.tc_rate[0] = ntohl (mp->tc_rate[0]); + p.tc_rate[1] = ntohl (mp->tc_rate[1]); + p.tc_rate[2] = ntohl (mp->tc_rate[2]); + p.tc_rate[3] = ntohl (mp->tc_rate[3]); + p.tc_period = ntohl (mp->tc_period); + + vnet_hw_interface_t *hw; + + VALIDATE_SW_IF_INDEX (mp); + + /* hw_if & dpdk device */ + hw = vnet_get_sup_hw_interface (dm->vnet_main, sw_if_index); + + xd = vec_elt_at_index (dm->devices, hw->dev_instance); + + rv = rte_sched_subport_config (xd->hqos_ht->hqos, subport, &p); + + BAD_SW_IF_INDEX_LABEL; +#else + clib_warning + ("setting HQoS subport parameters without DPDK not implemented"); + rv = VNET_API_ERROR_UNIMPLEMENTED; +#endif /* DPDK */ + + REPLY_MACRO (VL_API_SW_INTERFACE_SET_DPDK_HQOS_SUBPORT_REPLY); +} + +static void + vl_api_sw_interface_set_dpdk_hqos_tctbl_t_handler + (vl_api_sw_interface_set_dpdk_hqos_tctbl_t * mp) +{ + vl_api_sw_interface_set_dpdk_hqos_tctbl_reply_t *rmp; + int rv = 0; + +#if DPDK > 0 + dpdk_main_t *dm = &dpdk_main; + vlib_thread_main_t *tm = vlib_get_thread_main (); + dpdk_device_t *xd; + + u32 sw_if_index = ntohl (mp->sw_if_index); + u32 entry = ntohl (mp->entry); + u32 tc = ntohl (mp->tc); + u32 queue = ntohl (mp->queue); + u32 val, i; + + vnet_hw_interface_t *hw; + + VALIDATE_SW_IF_INDEX (mp); + + /* hw_if & dpdk device */ + hw = vnet_get_sup_hw_interface (dm->vnet_main, sw_if_index); + + xd = vec_elt_at_index (dm->devices, hw->dev_instance); + + if (tc >= RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE) + { + clib_warning ("invalid traffic class !!"); + rv = VNET_API_ERROR_INVALID_VALUE; + goto done; + } + if (queue >= RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS) + { + clib_warning ("invalid queue !!"); + rv = VNET_API_ERROR_INVALID_VALUE; + goto done; + } + + /* Detect the set of worker threads */ + uword *p = hash_get_mem (tm->thread_registrations_by_name, "workers"); + + if (p == 0) + { + clib_warning ("worker thread registration AWOL !!"); + rv = VNET_API_ERROR_INVALID_VALUE_2; + goto done; + } + + vlib_thread_registration_t *tr = (vlib_thread_registration_t *) p[0]; + int worker_thread_first = tr->first_index; + int worker_thread_count = tr->count; + + val = tc * RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS + queue; + for (i = 0; i < worker_thread_count; i++) + xd->hqos_wt[worker_thread_first + i].hqos_tc_table[entry] = val; + + BAD_SW_IF_INDEX_LABEL; +done: +#else + clib_warning ("setting HQoS DSCP table entry without DPDK not implemented"); + rv = VNET_API_ERROR_UNIMPLEMENTED; +#endif /* DPDK */ + + REPLY_MACRO (VL_API_SW_INTERFACE_SET_DPDK_HQOS_TCTBL_REPLY); +} + +/* + * dpdk_api_hookup + * Add vpe's API message handlers to the table. + * vlib has alread mapped shared memory and + * added the client registration handlers. + * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process() + */ +#define vl_msg_name_crc_list +#include <vnet/vnet_all_api_h.h> +#undef vl_msg_name_crc_list + +static void +setup_message_id_table (api_main_t * am) +{ +#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id); + foreach_vl_msg_name_crc_dpdk; +#undef _ +} + +static clib_error_t * +dpdk_api_hookup (vlib_main_t * vm) +{ + api_main_t *am = &api_main; + +#define _(N,n) \ + vl_msg_api_set_handlers(VL_API_##N, #n, \ + vl_api_##n##_t_handler, \ + vl_noop_handler, \ + vl_api_##n##_t_endian, \ + vl_api_##n##_t_print, \ + sizeof(vl_api_##n##_t), 1); + foreach_vpe_api_msg; +#undef _ + + /* + * Set up the (msg_name, crc, message-id) table + */ + setup_message_id_table (am); + + return 0; +} + +VLIB_API_INIT_FUNCTION (dpdk_api_hookup); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |