2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vnet/vnet.h>
17 #include <vppinfra/vec.h>
18 #include <vppinfra/format.h>
19 #include <vppinfra/file.h>
20 #include <vlib/unix/unix.h>
23 #include <vnet/ip/ip.h>
24 #include <vnet/ethernet/ethernet.h>
25 #include <vnet/ethernet/arp_packet.h>
26 #include <vnet/interface/rx_queue_funcs.h>
27 #include <dpdk/buffer.h>
28 #include <dpdk/device/dpdk.h>
29 #include <dpdk/device/dpdk_priv.h>
30 #include <vppinfra/error.h>
33 dpdk_device_error (dpdk_device_t * xd, char *str, int rv)
35 dpdk_log_err ("Interface %U error %d: %s",
36 format_dpdk_device_name, xd->port_id, rv, rte_strerror (rv));
37 xd->errors = clib_error_return (xd->errors, "%s[port:%d, errno:%d]: %s",
38 str, xd->port_id, rv, rte_strerror (rv));
42 dpdk_device_setup (dpdk_device_t * xd)
44 dpdk_main_t *dm = &dpdk_main;
45 vlib_main_t *vm = vlib_get_main ();
46 vnet_main_t *vnm = vnet_get_main ();
47 vlib_thread_main_t *tm = vlib_get_thread_main ();
48 vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, xd->sw_if_index);
49 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
50 struct rte_eth_dev_info dev_info;
55 ASSERT (vlib_get_thread_index () == 0);
57 clib_error_free (xd->errors);
58 sw->flags &= ~VNET_SW_INTERFACE_FLAG_ERROR;
60 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
62 vnet_hw_interface_set_flags (dm->vnet_main, xd->hw_if_index, 0);
63 dpdk_device_stop (xd);
66 /* Enable flow director when flows exist */
67 if (xd->pmd == VNET_DPDK_PMD_I40E)
69 if ((xd->flags & DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD) != 0)
70 xd->port_conf.fdir_conf.mode = RTE_FDIR_MODE_PERFECT;
72 xd->port_conf.fdir_conf.mode = RTE_FDIR_MODE_NONE;
75 rte_eth_dev_info_get (xd->port_id, &dev_info);
77 bitmap = xd->port_conf.txmode.offloads & ~dev_info.tx_offload_capa;
80 dpdk_log_warn ("unsupported tx offloads requested on port %u: %U",
81 xd->port_id, format_dpdk_tx_offload_caps, bitmap);
82 xd->port_conf.txmode.offloads ^= bitmap;
85 bitmap = xd->port_conf.rxmode.offloads & ~dev_info.rx_offload_capa;
88 dpdk_log_warn ("unsupported rx offloads requested on port %u: %U",
89 xd->port_id, format_dpdk_rx_offload_caps, bitmap);
90 xd->port_conf.rxmode.offloads ^= bitmap;
93 rv = rte_eth_dev_configure (xd->port_id, xd->rx_q_used,
94 xd->tx_q_used, &xd->port_conf);
98 dpdk_device_error (xd, "rte_eth_dev_configure", rv);
102 vec_validate_aligned (xd->tx_queues, xd->tx_q_used - 1,
103 CLIB_CACHE_LINE_BYTES);
104 for (j = 0; j < xd->tx_q_used; j++)
107 rte_eth_tx_queue_setup (xd->port_id, j, xd->nb_tx_desc,
108 xd->cpu_socket, &xd->tx_conf);
110 /* retry with any other CPU socket */
113 rte_eth_tx_queue_setup (xd->port_id, j,
114 xd->nb_tx_desc, SOCKET_ID_ANY,
117 dpdk_device_error (xd, "rte_eth_tx_queue_setup", rv);
119 if (xd->tx_q_used < tm->n_vlib_mains)
120 clib_spinlock_init (&vec_elt (xd->tx_queues, j).lock);
123 vec_validate_aligned (xd->rx_queues, xd->rx_q_used - 1,
124 CLIB_CACHE_LINE_BYTES);
125 for (j = 0; j < xd->rx_q_used; j++)
127 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, j);
128 u8 bpidx = vlib_buffer_pool_get_default_for_numa (
129 vm, vnet_hw_if_get_rx_queue_numa_node (vnm, rxq->queue_index));
130 vlib_buffer_pool_t *bp = vlib_get_buffer_pool (vm, bpidx);
131 struct rte_mempool *mp = dpdk_mempool_by_buffer_pool_index[bpidx];
133 rv = rte_eth_rx_queue_setup (xd->port_id, j, xd->nb_rx_desc,
134 xd->cpu_socket, 0, mp);
136 /* retry with any other CPU socket */
138 rv = rte_eth_rx_queue_setup (xd->port_id, j, xd->nb_rx_desc,
139 SOCKET_ID_ANY, 0, mp);
141 rxq->buffer_pool_index = bp->index;
144 dpdk_device_error (xd, "rte_eth_rx_queue_setup", rv);
147 if (vec_len (xd->errors))
150 rte_eth_dev_set_mtu (xd->port_id, hi->max_packet_bytes);
152 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
153 dpdk_device_start (xd);
155 if (vec_len (xd->errors))
161 xd->flags |= DPDK_DEVICE_FLAG_PMD_INIT_FAIL;
162 sw->flags |= VNET_SW_INTERFACE_FLAG_ERROR;
165 static clib_error_t *
166 dpdk_rx_read_ready (clib_file_t *uf)
168 vnet_main_t *vnm = vnet_get_main ();
169 dpdk_main_t *dm = &dpdk_main;
170 u32 qidx = uf->private_data;
171 vnet_hw_if_rx_queue_t *rxq = vnet_hw_if_get_rx_queue (vnm, qidx);
172 dpdk_device_t *xd = vec_elt_at_index (dm->devices, rxq->dev_instance);
175 CLIB_UNUSED (ssize_t size) = read (uf->file_descriptor, &b, sizeof (b));
176 if (rxq->mode != VNET_HW_IF_RX_MODE_POLLING)
178 vnet_hw_if_rx_queue_set_int_pending (vnm, uf->private_data);
179 rte_eth_dev_rx_intr_enable (xd->port_id, rxq->queue_id);
186 dpdk_setup_interrupts (dpdk_device_t *xd)
188 vnet_main_t *vnm = vnet_get_main ();
189 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
193 if (!xd->port_conf.intr_conf.rxq)
196 /* Probe for interrupt support */
197 if (rte_eth_dev_rx_intr_enable (xd->port_id, 0))
199 dpdk_log_info ("probe for interrupt mode for device %U. Failed.\n",
200 format_dpdk_device_name, xd->port_id);
204 xd->flags |= DPDK_DEVICE_FLAG_INT_SUPPORTED;
205 if (!(xd->flags & DPDK_DEVICE_FLAG_INT_UNMASKABLE))
206 rte_eth_dev_rx_intr_disable (xd->port_id, 0);
207 dpdk_log_info ("Probe for interrupt mode for device %U. Success.\n",
208 format_dpdk_device_name, xd->port_id);
211 if (xd->flags & DPDK_DEVICE_FLAG_INT_SUPPORTED)
213 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
214 for (int q = 0; q < xd->rx_q_used; q++)
216 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
217 clib_file_t f = { 0 };
218 rxq->efd = rte_eth_dev_rx_intr_ctl_q_get_fd (xd->port_id, q);
221 xd->flags &= ~DPDK_DEVICE_FLAG_INT_SUPPORTED;
222 hi->flags &= ~VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
225 f.read_function = dpdk_rx_read_ready;
226 f.flags = UNIX_FILE_EVENT_EDGE_TRIGGERED;
227 f.file_descriptor = rxq->efd;
228 f.private_data = rxq->queue_index;
230 format (0, "%U queue %u", format_dpdk_device_name, xd->port_id, q);
231 rxq->clib_file_index = clib_file_add (&file_main, &f);
232 vnet_hw_if_set_rx_queue_file_index (vnm, rxq->queue_index,
233 rxq->clib_file_index);
234 if (xd->flags & DPDK_DEVICE_FLAG_INT_UNMASKABLE)
236 clib_file_main_t *fm = &file_main;
238 pool_elt_at_index (fm->file_pool, rxq->clib_file_index);
239 fm->file_update (f, UNIX_FILE_UPDATE_DELETE);
243 vnet_hw_if_update_runtime_data (vnm, xd->hw_if_index);
247 dpdk_device_start (dpdk_device_t * xd)
251 if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL)
254 rv = rte_eth_dev_start (xd->port_id);
258 dpdk_device_error (xd, "rte_eth_dev_start", rv);
262 dpdk_setup_interrupts (xd);
264 if (xd->default_mac_address)
265 rv = rte_eth_dev_default_mac_addr_set (xd->port_id,
266 (void *) xd->default_mac_address);
269 dpdk_device_error (xd, "rte_eth_dev_default_mac_addr_set", rv);
271 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
272 rte_eth_promiscuous_enable (xd->port_id);
274 rte_eth_promiscuous_disable (xd->port_id);
276 rte_eth_allmulticast_enable (xd->port_id);
278 dpdk_log_info ("Interface %U started",
279 format_dpdk_device_name, xd->port_id);
283 dpdk_device_stop (dpdk_device_t * xd)
285 if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL)
288 rte_eth_allmulticast_disable (xd->port_id);
289 rte_eth_dev_stop (xd->port_id);
290 clib_memset (&xd->link, 0, sizeof (struct rte_eth_link));
292 dpdk_log_info ("Interface %U stopped",
293 format_dpdk_device_name, xd->port_id);
296 void vl_api_force_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
299 dpdk_port_state_callback_inline (dpdk_portid_t port_id,
300 enum rte_eth_event_type type, void *param)
302 struct rte_eth_link link;
304 RTE_SET_USED (param);
305 if (type != RTE_ETH_EVENT_INTR_LSC)
307 dpdk_log_info ("Unknown event %d received for port %d", type, port_id);
311 rte_eth_link_get_nowait (port_id, &link);
312 u8 link_up = link.link_status;
314 dpdk_log_info ("Port %d Link Up - speed %u Mbps - %s",
315 port_id, (unsigned) link.link_speed,
316 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
317 "full-duplex" : "half-duplex");
319 dpdk_log_info ("Port %d Link Down\n\n", port_id);
325 dpdk_port_state_callback (dpdk_portid_t port_id,
326 enum rte_eth_event_type type,
328 void *ret_param __attribute__ ((unused)))
330 return dpdk_port_state_callback_inline (port_id, type, param);
333 /* If this device is PCI return pointer to info, otherwise NULL */
334 struct rte_pci_device *
335 dpdk_get_pci_device (const struct rte_eth_dev_info *info)
337 const struct rte_bus *bus;
339 bus = rte_bus_find_by_device (info->device);
340 if (bus && !strcmp (bus->name, "pci"))
341 return RTE_DEV_TO_PCI (info->device);
346 /* If this device is VMBUS return pointer to info, otherwise NULL */
347 struct rte_vmbus_device *
348 dpdk_get_vmbus_device (const struct rte_eth_dev_info *info)
350 const struct rte_bus *bus;
352 bus = rte_bus_find_by_device (info->device);
353 if (bus && !strcmp (bus->name, "vmbus"))
354 return container_of (info->device, struct rte_vmbus_device, device);
360 * fd.io coding-style-patch-verification: ON
363 * eval: (c-set-style "gnu")