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;
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 (vnm, 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 if (xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_JUMBO_FRAME)
94 xd->port_conf.rxmode.max_rx_pkt_len =
95 clib_min (ETHERNET_MAX_PACKET_BYTES, dev_info.max_rx_pktlen);
97 xd->port_conf.rxmode.max_rx_pkt_len = 0;
99 rv = rte_eth_dev_configure (xd->port_id, xd->conf.n_rx_queues,
100 xd->conf.n_tx_queues, &xd->port_conf);
104 dpdk_device_error (xd, "rte_eth_dev_configure", rv);
108 rte_eth_dev_get_mtu (xd->port_id, &mtu);
109 dpdk_log_debug ("[%u] device default mtu %u", xd->port_id, mtu);
111 hi->max_supported_packet_bytes = mtu;
112 if (hi->max_packet_bytes > mtu)
114 vnet_hw_interface_set_mtu (vnm, xd->hw_if_index, mtu);
118 rte_eth_dev_set_mtu (xd->port_id, hi->max_packet_bytes);
119 dpdk_log_debug ("[%u] port mtu set to %u", xd->port_id,
120 hi->max_packet_bytes);
123 vec_validate_aligned (xd->tx_queues, xd->conf.n_tx_queues - 1,
124 CLIB_CACHE_LINE_BYTES);
125 for (j = 0; j < xd->conf.n_tx_queues; j++)
127 rv = rte_eth_tx_queue_setup (xd->port_id, j, xd->conf.n_tx_desc,
130 /* retry with any other CPU socket */
132 rv = rte_eth_tx_queue_setup (xd->port_id, j, xd->conf.n_tx_desc,
135 dpdk_device_error (xd, "rte_eth_tx_queue_setup", rv);
137 if (xd->conf.n_tx_queues < tm->n_vlib_mains)
138 clib_spinlock_init (&vec_elt (xd->tx_queues, j).lock);
141 vec_validate_aligned (xd->rx_queues, xd->conf.n_rx_queues - 1,
142 CLIB_CACHE_LINE_BYTES);
144 for (j = 0; j < xd->conf.n_rx_queues; j++)
146 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, j);
147 u8 bpidx = vlib_buffer_pool_get_default_for_numa (
148 vm, vnet_hw_if_get_rx_queue_numa_node (vnm, rxq->queue_index));
149 vlib_buffer_pool_t *bp = vlib_get_buffer_pool (vm, bpidx);
150 struct rte_mempool *mp = dpdk_mempool_by_buffer_pool_index[bpidx];
152 rv = rte_eth_rx_queue_setup (xd->port_id, j, xd->conf.n_rx_desc,
153 xd->cpu_socket, 0, mp);
155 /* retry with any other CPU socket */
157 rv = rte_eth_rx_queue_setup (xd->port_id, j, xd->conf.n_rx_desc,
158 SOCKET_ID_ANY, 0, mp);
160 rxq->buffer_pool_index = bp->index;
163 dpdk_device_error (xd, "rte_eth_rx_queue_setup", rv);
166 if (vec_len (xd->errors))
170 (VLIB_BUFFER_TOTAL_LENGTH_VALID | VLIB_BUFFER_EXT_HDR_VALID);
172 if ((xd->port_conf.rxmode.offloads &
173 (DEV_RX_OFFLOAD_TCP_CKSUM | DEV_RX_OFFLOAD_UDP_CKSUM)) ==
174 (DEV_RX_OFFLOAD_TCP_CKSUM | DEV_RX_OFFLOAD_UDP_CKSUM))
176 (VNET_BUFFER_F_L4_CHECKSUM_COMPUTED | VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
178 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
179 dpdk_device_start (xd);
181 if (vec_len (xd->errors))
187 xd->flags |= DPDK_DEVICE_FLAG_PMD_INIT_FAIL;
188 sw->flags |= VNET_SW_INTERFACE_FLAG_ERROR;
191 static clib_error_t *
192 dpdk_rx_read_ready (clib_file_t *uf)
194 vnet_main_t *vnm = vnet_get_main ();
195 dpdk_main_t *dm = &dpdk_main;
196 u32 qidx = uf->private_data;
197 vnet_hw_if_rx_queue_t *rxq = vnet_hw_if_get_rx_queue (vnm, qidx);
198 dpdk_device_t *xd = vec_elt_at_index (dm->devices, rxq->dev_instance);
201 CLIB_UNUSED (ssize_t size) = read (uf->file_descriptor, &b, sizeof (b));
202 if (rxq->mode != VNET_HW_IF_RX_MODE_POLLING)
204 vnet_hw_if_rx_queue_set_int_pending (vnm, uf->private_data);
205 rte_eth_dev_rx_intr_enable (xd->port_id, rxq->queue_id);
212 dpdk_setup_interrupts (dpdk_device_t *xd)
214 vnet_main_t *vnm = vnet_get_main ();
215 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
219 if (!xd->port_conf.intr_conf.rxq)
222 /* Probe for interrupt support */
223 if (rte_eth_dev_rx_intr_enable (xd->port_id, 0))
225 dpdk_log_info ("probe for interrupt mode for device %U. Failed.\n",
226 format_dpdk_device_name, xd->port_id);
230 xd->flags |= DPDK_DEVICE_FLAG_INT_SUPPORTED;
231 if (!(xd->flags & DPDK_DEVICE_FLAG_INT_UNMASKABLE))
232 rte_eth_dev_rx_intr_disable (xd->port_id, 0);
233 dpdk_log_info ("Probe for interrupt mode for device %U. Success.\n",
234 format_dpdk_device_name, xd->port_id);
237 if (xd->flags & DPDK_DEVICE_FLAG_INT_SUPPORTED)
239 hi->caps |= VNET_HW_IF_CAP_INT_MODE;
240 for (int q = 0; q < xd->conf.n_rx_queues; q++)
242 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
243 clib_file_t f = { 0 };
244 rxq->efd = rte_eth_dev_rx_intr_ctl_q_get_fd (xd->port_id, q);
247 xd->flags &= ~DPDK_DEVICE_FLAG_INT_SUPPORTED;
248 hi->caps &= ~VNET_HW_IF_CAP_INT_MODE;
251 f.read_function = dpdk_rx_read_ready;
252 f.flags = UNIX_FILE_EVENT_EDGE_TRIGGERED;
253 f.file_descriptor = rxq->efd;
254 f.private_data = rxq->queue_index;
256 format (0, "%U queue %u", format_dpdk_device_name, xd->port_id, q);
257 rxq->clib_file_index = clib_file_add (&file_main, &f);
258 vnet_hw_if_set_rx_queue_file_index (vnm, rxq->queue_index,
259 rxq->clib_file_index);
260 if (xd->flags & DPDK_DEVICE_FLAG_INT_UNMASKABLE)
262 clib_file_main_t *fm = &file_main;
264 pool_elt_at_index (fm->file_pool, rxq->clib_file_index);
265 fm->file_update (f, UNIX_FILE_UPDATE_DELETE);
269 vnet_hw_if_update_runtime_data (vnm, xd->hw_if_index);
273 dpdk_device_start (dpdk_device_t * xd)
277 if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL)
280 rv = rte_eth_dev_start (xd->port_id);
284 dpdk_device_error (xd, "rte_eth_dev_start", rv);
288 dpdk_setup_interrupts (xd);
290 if (xd->default_mac_address)
291 rv = rte_eth_dev_default_mac_addr_set (xd->port_id,
292 (void *) xd->default_mac_address);
295 dpdk_device_error (xd, "rte_eth_dev_default_mac_addr_set", rv);
297 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
298 rte_eth_promiscuous_enable (xd->port_id);
300 rte_eth_promiscuous_disable (xd->port_id);
302 rte_eth_allmulticast_enable (xd->port_id);
304 dpdk_log_info ("Interface %U started",
305 format_dpdk_device_name, xd->port_id);
309 dpdk_device_stop (dpdk_device_t * xd)
311 if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL)
314 rte_eth_allmulticast_disable (xd->port_id);
315 rte_eth_dev_stop (xd->port_id);
316 clib_memset (&xd->link, 0, sizeof (struct rte_eth_link));
318 dpdk_log_info ("Interface %U stopped",
319 format_dpdk_device_name, xd->port_id);
322 void vl_api_force_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
325 dpdk_port_state_callback_inline (dpdk_portid_t port_id,
326 enum rte_eth_event_type type, void *param)
328 struct rte_eth_link link;
330 RTE_SET_USED (param);
331 if (type != RTE_ETH_EVENT_INTR_LSC)
333 dpdk_log_info ("Unknown event %d received for port %d", type, port_id);
337 rte_eth_link_get_nowait (port_id, &link);
338 u8 link_up = link.link_status;
340 dpdk_log_info ("Port %d Link Up - speed %u Mbps - %s",
341 port_id, (unsigned) link.link_speed,
342 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
343 "full-duplex" : "half-duplex");
345 dpdk_log_info ("Port %d Link Down\n\n", port_id);
351 dpdk_port_state_callback (dpdk_portid_t port_id,
352 enum rte_eth_event_type type,
354 void *ret_param __attribute__ ((unused)))
356 return dpdk_port_state_callback_inline (port_id, type, param);
359 /* If this device is PCI return pointer to info, otherwise NULL */
360 struct rte_pci_device *
361 dpdk_get_pci_device (const struct rte_eth_dev_info *info)
363 const struct rte_bus *bus;
365 bus = rte_bus_find_by_device (info->device);
366 if (bus && !strcmp (bus->name, "pci"))
367 return RTE_DEV_TO_PCI (info->device);
372 /* If this device is VMBUS return pointer to info, otherwise NULL */
373 struct rte_vmbus_device *
374 dpdk_get_vmbus_device (const struct rte_eth_dev_info *info)
376 const struct rte_bus *bus;
378 bus = rte_bus_find_by_device (info->device);
379 if (bus && !strcmp (bus->name, "vmbus"))
380 return container_of (info->device, struct rte_vmbus_device, device);
386 * fd.io coding-style-patch-verification: ON
389 * eval: (c-set-style "gnu")