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 vlib_main_t *vm = vlib_get_main ();
45 vnet_main_t *vnm = vnet_get_main ();
46 vlib_thread_main_t *tm = vlib_get_thread_main ();
47 vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, xd->sw_if_index);
48 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
49 struct rte_eth_dev_info dev_info;
54 ASSERT (vlib_get_thread_index () == 0);
56 clib_error_free (xd->errors);
57 sw->flags &= ~VNET_SW_INTERFACE_FLAG_ERROR;
59 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
61 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, 0);
62 dpdk_device_stop (xd);
65 /* Enable flow director when flows exist */
66 if (xd->pmd == VNET_DPDK_PMD_I40E)
68 if ((xd->flags & DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD) != 0)
69 xd->port_conf.fdir_conf.mode = RTE_FDIR_MODE_PERFECT;
71 xd->port_conf.fdir_conf.mode = RTE_FDIR_MODE_NONE;
74 rte_eth_dev_info_get (xd->port_id, &dev_info);
76 bitmap = xd->port_conf.txmode.offloads & ~dev_info.tx_offload_capa;
79 dpdk_log_warn ("unsupported tx offloads requested on port %u: %U",
80 xd->port_id, format_dpdk_tx_offload_caps, bitmap);
81 xd->port_conf.txmode.offloads ^= bitmap;
84 bitmap = xd->port_conf.rxmode.offloads & ~dev_info.rx_offload_capa;
87 dpdk_log_warn ("unsupported rx offloads requested on port %u: %U",
88 xd->port_id, format_dpdk_rx_offload_caps, bitmap);
89 xd->port_conf.rxmode.offloads ^= bitmap;
92 rv = rte_eth_dev_configure (xd->port_id, xd->rx_q_used,
93 xd->tx_q_used, &xd->port_conf);
97 dpdk_device_error (xd, "rte_eth_dev_configure", rv);
101 vec_validate_aligned (xd->tx_queues, xd->tx_q_used - 1,
102 CLIB_CACHE_LINE_BYTES);
103 for (j = 0; j < xd->tx_q_used; j++)
106 rte_eth_tx_queue_setup (xd->port_id, j, xd->nb_tx_desc,
107 xd->cpu_socket, &xd->tx_conf);
109 /* retry with any other CPU socket */
112 rte_eth_tx_queue_setup (xd->port_id, j,
113 xd->nb_tx_desc, SOCKET_ID_ANY,
116 dpdk_device_error (xd, "rte_eth_tx_queue_setup", rv);
118 if (xd->tx_q_used < tm->n_vlib_mains)
119 clib_spinlock_init (&vec_elt (xd->tx_queues, j).lock);
122 vec_validate_aligned (xd->rx_queues, xd->rx_q_used - 1,
123 CLIB_CACHE_LINE_BYTES);
124 for (j = 0; j < xd->rx_q_used; j++)
126 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, j);
127 u8 bpidx = vlib_buffer_pool_get_default_for_numa (
128 vm, vnet_hw_if_get_rx_queue_numa_node (vnm, rxq->queue_index));
129 vlib_buffer_pool_t *bp = vlib_get_buffer_pool (vm, bpidx);
130 struct rte_mempool *mp = dpdk_mempool_by_buffer_pool_index[bpidx];
132 rv = rte_eth_rx_queue_setup (xd->port_id, j, xd->nb_rx_desc,
133 xd->cpu_socket, 0, mp);
135 /* retry with any other CPU socket */
137 rv = rte_eth_rx_queue_setup (xd->port_id, j, xd->nb_rx_desc,
138 SOCKET_ID_ANY, 0, mp);
140 rxq->buffer_pool_index = bp->index;
143 dpdk_device_error (xd, "rte_eth_rx_queue_setup", rv);
146 if (vec_len (xd->errors))
149 rte_eth_dev_set_mtu (xd->port_id, hi->max_packet_bytes);
151 (VLIB_BUFFER_TOTAL_LENGTH_VALID | VLIB_BUFFER_EXT_HDR_VALID);
153 if (xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_TCP_CKSUM)
155 (VNET_BUFFER_F_L4_CHECKSUM_COMPUTED | VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
156 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
157 dpdk_device_start (xd);
159 if (vec_len (xd->errors))
165 xd->flags |= DPDK_DEVICE_FLAG_PMD_INIT_FAIL;
166 sw->flags |= VNET_SW_INTERFACE_FLAG_ERROR;
169 static clib_error_t *
170 dpdk_rx_read_ready (clib_file_t *uf)
172 vnet_main_t *vnm = vnet_get_main ();
173 dpdk_main_t *dm = &dpdk_main;
174 u32 qidx = uf->private_data;
175 vnet_hw_if_rx_queue_t *rxq = vnet_hw_if_get_rx_queue (vnm, qidx);
176 dpdk_device_t *xd = vec_elt_at_index (dm->devices, rxq->dev_instance);
179 CLIB_UNUSED (ssize_t size) = read (uf->file_descriptor, &b, sizeof (b));
180 if (rxq->mode != VNET_HW_IF_RX_MODE_POLLING)
182 vnet_hw_if_rx_queue_set_int_pending (vnm, uf->private_data);
183 rte_eth_dev_rx_intr_enable (xd->port_id, rxq->queue_id);
190 dpdk_setup_interrupts (dpdk_device_t *xd)
192 vnet_main_t *vnm = vnet_get_main ();
193 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
197 if (!xd->port_conf.intr_conf.rxq)
200 /* Probe for interrupt support */
201 if (rte_eth_dev_rx_intr_enable (xd->port_id, 0))
203 dpdk_log_info ("probe for interrupt mode for device %U. Failed.\n",
204 format_dpdk_device_name, xd->port_id);
208 xd->flags |= DPDK_DEVICE_FLAG_INT_SUPPORTED;
209 if (!(xd->flags & DPDK_DEVICE_FLAG_INT_UNMASKABLE))
210 rte_eth_dev_rx_intr_disable (xd->port_id, 0);
211 dpdk_log_info ("Probe for interrupt mode for device %U. Success.\n",
212 format_dpdk_device_name, xd->port_id);
215 if (xd->flags & DPDK_DEVICE_FLAG_INT_SUPPORTED)
217 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_INT_MODE;
218 for (int q = 0; q < xd->rx_q_used; q++)
220 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
221 clib_file_t f = { 0 };
222 rxq->efd = rte_eth_dev_rx_intr_ctl_q_get_fd (xd->port_id, q);
225 xd->flags &= ~DPDK_DEVICE_FLAG_INT_SUPPORTED;
226 hi->caps &= ~VNET_HW_INTERFACE_CAP_SUPPORTS_INT_MODE;
229 f.read_function = dpdk_rx_read_ready;
230 f.flags = UNIX_FILE_EVENT_EDGE_TRIGGERED;
231 f.file_descriptor = rxq->efd;
232 f.private_data = rxq->queue_index;
234 format (0, "%U queue %u", format_dpdk_device_name, xd->port_id, q);
235 rxq->clib_file_index = clib_file_add (&file_main, &f);
236 vnet_hw_if_set_rx_queue_file_index (vnm, rxq->queue_index,
237 rxq->clib_file_index);
238 if (xd->flags & DPDK_DEVICE_FLAG_INT_UNMASKABLE)
240 clib_file_main_t *fm = &file_main;
242 pool_elt_at_index (fm->file_pool, rxq->clib_file_index);
243 fm->file_update (f, UNIX_FILE_UPDATE_DELETE);
247 vnet_hw_if_update_runtime_data (vnm, xd->hw_if_index);
251 dpdk_device_start (dpdk_device_t * xd)
255 if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL)
258 rv = rte_eth_dev_start (xd->port_id);
262 dpdk_device_error (xd, "rte_eth_dev_start", rv);
266 dpdk_setup_interrupts (xd);
268 if (xd->default_mac_address)
269 rv = rte_eth_dev_default_mac_addr_set (xd->port_id,
270 (void *) xd->default_mac_address);
273 dpdk_device_error (xd, "rte_eth_dev_default_mac_addr_set", rv);
275 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
276 rte_eth_promiscuous_enable (xd->port_id);
278 rte_eth_promiscuous_disable (xd->port_id);
280 rte_eth_allmulticast_enable (xd->port_id);
282 dpdk_log_info ("Interface %U started",
283 format_dpdk_device_name, xd->port_id);
287 dpdk_device_stop (dpdk_device_t * xd)
289 if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL)
292 rte_eth_allmulticast_disable (xd->port_id);
293 rte_eth_dev_stop (xd->port_id);
294 clib_memset (&xd->link, 0, sizeof (struct rte_eth_link));
296 dpdk_log_info ("Interface %U stopped",
297 format_dpdk_device_name, xd->port_id);
300 void vl_api_force_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
303 dpdk_port_state_callback_inline (dpdk_portid_t port_id,
304 enum rte_eth_event_type type, void *param)
306 struct rte_eth_link link;
308 RTE_SET_USED (param);
309 if (type != RTE_ETH_EVENT_INTR_LSC)
311 dpdk_log_info ("Unknown event %d received for port %d", type, port_id);
315 rte_eth_link_get_nowait (port_id, &link);
316 u8 link_up = link.link_status;
318 dpdk_log_info ("Port %d Link Up - speed %u Mbps - %s",
319 port_id, (unsigned) link.link_speed,
320 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
321 "full-duplex" : "half-duplex");
323 dpdk_log_info ("Port %d Link Down\n\n", port_id);
329 dpdk_port_state_callback (dpdk_portid_t port_id,
330 enum rte_eth_event_type type,
332 void *ret_param __attribute__ ((unused)))
334 return dpdk_port_state_callback_inline (port_id, type, param);
337 /* If this device is PCI return pointer to info, otherwise NULL */
338 struct rte_pci_device *
339 dpdk_get_pci_device (const struct rte_eth_dev_info *info)
341 const struct rte_bus *bus;
343 bus = rte_bus_find_by_device (info->device);
344 if (bus && !strcmp (bus->name, "pci"))
345 return RTE_DEV_TO_PCI (info->device);
350 /* If this device is VMBUS return pointer to info, otherwise NULL */
351 struct rte_vmbus_device *
352 dpdk_get_vmbus_device (const struct rte_eth_dev_info *info)
354 const struct rte_bus *bus;
356 bus = rte_bus_find_by_device (info->device);
357 if (bus && !strcmp (bus->name, "vmbus"))
358 return container_of (info->device, struct rte_vmbus_device, device);
364 * fd.io coding-style-patch-verification: ON
367 * eval: (c-set-style "gnu")