diff options
Diffstat (limited to 'src/plugins/dpdk/device/common.c')
| -rw-r--r-- | src/plugins/dpdk/device/common.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/plugins/dpdk/device/common.c b/src/plugins/dpdk/device/common.c new file mode 100644 index 00000000000..79c5888d9ad --- /dev/null +++ b/src/plugins/dpdk/device/common.c @@ -0,0 +1,156 @@ +/* + * Copyright (c) 2017 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 <vppinfra/vec.h> +#include <vppinfra/format.h> +#include <vlib/unix/cj.h> +#include <assert.h> + +#include <vnet/ethernet/ethernet.h> +#include <dpdk/device/dpdk.h> + +#include <dpdk/device/dpdk_priv.h> +#include <vppinfra/error.h> + +clib_error_t * +dpdk_error_return (clib_error_t * error, char *str, dpdk_device_t * xd, + int rv) +{ + return clib_error_return (error, "%s[%d]: %s(%d)", str, xd->device_index, + rte_strerror (rv), rv); +} + +clib_error_t * +dpdk_device_setup (dpdk_device_t * xd) +{ + dpdk_main_t *dm = &dpdk_main; + clib_error_t *err = 0; + int rv; + int j; + + ASSERT (vlib_get_thread_index () == 0); + + if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) + { + vnet_hw_interface_set_flags (dm->vnet_main, xd->hw_if_index, 0); + dpdk_device_stop (xd); + } + + rv = rte_eth_dev_configure (xd->device_index, xd->rx_q_used, + xd->tx_q_used, &xd->port_conf); + + if (rv < 0) + return dpdk_error_return (err, "rte_eth_dev_configure", xd, rv); + + /* Set up one TX-queue per worker thread */ + for (j = 0; j < xd->tx_q_used; j++) + { + rv = rte_eth_tx_queue_setup (xd->device_index, j, xd->nb_tx_desc, + xd->cpu_socket, &xd->tx_conf); + + /* retry with any other CPU socket */ + if (rv < 0) + rv = rte_eth_tx_queue_setup (xd->device_index, j, xd->nb_tx_desc, + SOCKET_ID_ANY, &xd->tx_conf); + if (rv < 0) + err = dpdk_error_return (err, "rte_eth_tx_queue_setup", xd, rv); + } + + for (j = 0; j < xd->rx_q_used; j++) + { + uword tidx = vnet_get_device_input_thread_index (dm->vnet_main, + xd->hw_if_index, j); + unsigned lcore = vlib_worker_threads[tidx].lcore_id; + u16 socket_id = rte_lcore_to_socket_id (lcore); + + rv = rte_eth_rx_queue_setup (xd->device_index, j, xd->nb_rx_desc, + xd->cpu_socket, 0, + dm->pktmbuf_pools[socket_id]); + + /* retry with any other CPU socket */ + if (rv < 0) + rv = rte_eth_rx_queue_setup (xd->device_index, j, xd->nb_rx_desc, + SOCKET_ID_ANY, 0, + dm->pktmbuf_pools[socket_id]); + + if (rv < 0) + err = dpdk_error_return (err, "rte_eth_rx_queue_setup", xd, rv); + } + + if (err) + return err; + + if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) + err = dpdk_device_start (xd); + + return err; +} + +clib_error_t * +dpdk_device_start (dpdk_device_t * xd) +{ + int rv; + clib_error_t *err = 0; + + rv = rte_eth_dev_start (xd->device_index); + + if (rv) + return dpdk_error_return (err, "rte_eth_dev_start", xd, rv); + + if (xd->default_mac_address) + rv = + rte_eth_dev_default_mac_addr_set (xd->device_index, + (struct ether_addr *) + xd->default_mac_address); + + if (rv) + err = dpdk_error_return (err, "rte_eth_dev_default_mac_addr_set", xd, rv); + + if (xd->flags & DPDK_DEVICE_FLAG_PROMISC) + rte_eth_promiscuous_enable (xd->device_index); + else + rte_eth_promiscuous_disable (xd->device_index); + + rte_eth_allmulticast_enable (xd->device_index); + + if (xd->pmd == VNET_DPDK_PMD_BOND) + { + u8 slink[16]; + int nlink = rte_eth_bond_slaves_get (xd->device_index, slink, 16); + while (nlink >= 1) + { + u8 dpdk_port = slink[--nlink]; + rte_eth_allmulticast_enable (dpdk_port); + } + } + + return err; +} + +clib_error_t * +dpdk_device_stop (dpdk_device_t * xd) +{ + rte_eth_dev_stop (xd->device_index); + + return 0; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |