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>
32 /* DPDK TX offload to vnet hw interface caps mapppings */
36 vnet_hw_if_caps_t caps;
37 } tx_off_caps_map[] = {
38 { DEV_TX_OFFLOAD_IPV4_CKSUM, VNET_HW_IF_CAP_TX_IP4_CKSUM },
39 { DEV_TX_OFFLOAD_TCP_CKSUM, VNET_HW_IF_CAP_TX_TCP_CKSUM },
40 { DEV_TX_OFFLOAD_UDP_CKSUM, VNET_HW_IF_CAP_TX_UDP_CKSUM },
41 { DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM, VNET_HW_IF_CAP_TX_IP4_OUTER_CKSUM },
42 { DEV_TX_OFFLOAD_OUTER_UDP_CKSUM, VNET_HW_IF_CAP_TX_UDP_OUTER_CKSUM },
43 { DEV_TX_OFFLOAD_TCP_TSO, VNET_HW_IF_CAP_TCP_GSO },
44 { DEV_TX_OFFLOAD_VXLAN_TNL_TSO, VNET_HW_IF_CAP_VXLAN_TNL_GSO }
48 dpdk_device_error (dpdk_device_t * xd, char *str, int rv)
50 dpdk_log_err ("Interface %U error %d: %s",
51 format_dpdk_device_name, xd->port_id, rv, rte_strerror (rv));
52 xd->errors = clib_error_return (xd->errors, "%s[port:%d, errno:%d]: %s",
53 str, xd->port_id, rv, rte_strerror (rv));
57 dpdk_device_setup (dpdk_device_t * xd)
59 vlib_main_t *vm = vlib_get_main ();
60 vnet_main_t *vnm = vnet_get_main ();
61 vlib_thread_main_t *tm = vlib_get_thread_main ();
62 vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, xd->sw_if_index);
63 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
64 vnet_hw_if_caps_change_t caps = {};
65 struct rte_eth_dev_info dev_info;
72 ASSERT (vlib_get_thread_index () == 0);
74 clib_error_free (xd->errors);
75 sw->flags &= ~VNET_SW_INTERFACE_FLAG_ERROR;
77 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
79 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, 0);
80 dpdk_device_stop (xd);
83 /* Enable flow director when flows exist */
84 if (xd->pmd == VNET_DPDK_PMD_I40E)
86 if ((xd->flags & DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD) != 0)
87 xd->port_conf.fdir_conf.mode = RTE_FDIR_MODE_PERFECT;
89 xd->port_conf.fdir_conf.mode = RTE_FDIR_MODE_NONE;
92 rte_eth_dev_info_get (xd->port_id, &dev_info);
94 bitmap = xd->port_conf.txmode.offloads & ~dev_info.tx_offload_capa;
97 dpdk_log_warn ("unsupported tx offloads requested on port %u: %U",
98 xd->port_id, format_dpdk_tx_offload_caps, bitmap);
99 xd->port_conf.txmode.offloads ^= bitmap;
102 bitmap = xd->port_conf.rxmode.offloads & ~dev_info.rx_offload_capa;
105 dpdk_log_warn ("unsupported rx offloads requested on port %u: %U",
106 xd->port_id, format_dpdk_rx_offload_caps, bitmap);
107 xd->port_conf.rxmode.offloads ^= bitmap;
110 rxo = xd->port_conf.rxmode.offloads;
111 txo = xd->port_conf.txmode.offloads;
113 if (rxo & DEV_RX_OFFLOAD_JUMBO_FRAME)
114 xd->port_conf.rxmode.max_rx_pkt_len =
115 clib_min (ETHERNET_MAX_PACKET_BYTES, dev_info.max_rx_pktlen);
117 xd->port_conf.rxmode.max_rx_pkt_len = 0;
119 rv = rte_eth_dev_configure (xd->port_id, xd->conf.n_rx_queues,
120 xd->conf.n_tx_queues, &xd->port_conf);
124 dpdk_device_error (xd, "rte_eth_dev_configure", rv);
128 rte_eth_dev_get_mtu (xd->port_id, &mtu);
129 dpdk_log_debug ("[%u] device default mtu %u", xd->port_id, mtu);
131 hi->max_supported_packet_bytes = mtu;
132 if (hi->max_packet_bytes > mtu)
134 vnet_hw_interface_set_mtu (vnm, xd->hw_if_index, mtu);
138 rte_eth_dev_set_mtu (xd->port_id, hi->max_packet_bytes);
139 dpdk_log_debug ("[%u] port mtu set to %u", xd->port_id,
140 hi->max_packet_bytes);
143 vec_validate_aligned (xd->tx_queues, xd->conf.n_tx_queues - 1,
144 CLIB_CACHE_LINE_BYTES);
145 for (j = 0; j < xd->conf.n_tx_queues; j++)
147 rv = rte_eth_tx_queue_setup (xd->port_id, j, xd->conf.n_tx_desc,
150 /* retry with any other CPU socket */
152 rv = rte_eth_tx_queue_setup (xd->port_id, j, xd->conf.n_tx_desc,
155 dpdk_device_error (xd, "rte_eth_tx_queue_setup", rv);
157 if (xd->conf.n_tx_queues < tm->n_vlib_mains)
158 clib_spinlock_init (&vec_elt (xd->tx_queues, j).lock);
161 vec_validate_aligned (xd->rx_queues, xd->conf.n_rx_queues - 1,
162 CLIB_CACHE_LINE_BYTES);
164 for (j = 0; j < xd->conf.n_rx_queues; j++)
166 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, j);
167 u8 bpidx = vlib_buffer_pool_get_default_for_numa (
168 vm, vnet_hw_if_get_rx_queue_numa_node (vnm, rxq->queue_index));
169 vlib_buffer_pool_t *bp = vlib_get_buffer_pool (vm, bpidx);
170 struct rte_mempool *mp = dpdk_mempool_by_buffer_pool_index[bpidx];
172 rv = rte_eth_rx_queue_setup (xd->port_id, j, xd->conf.n_rx_desc,
173 xd->cpu_socket, 0, mp);
175 /* retry with any other CPU socket */
177 rv = rte_eth_rx_queue_setup (xd->port_id, j, xd->conf.n_rx_desc,
178 SOCKET_ID_ANY, 0, mp);
180 rxq->buffer_pool_index = bp->index;
183 dpdk_device_error (xd, "rte_eth_rx_queue_setup", rv);
186 if (vec_len (xd->errors))
190 (VLIB_BUFFER_TOTAL_LENGTH_VALID | VLIB_BUFFER_EXT_HDR_VALID);
192 if ((rxo & (DEV_RX_OFFLOAD_TCP_CKSUM | DEV_RX_OFFLOAD_UDP_CKSUM)) ==
193 (DEV_RX_OFFLOAD_TCP_CKSUM | DEV_RX_OFFLOAD_UDP_CKSUM))
195 (VNET_BUFFER_F_L4_CHECKSUM_COMPUTED | VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
197 /* unconditionally set mac filtering cap */
198 caps.val = caps.mask = VNET_HW_IF_CAP_MAC_FILTER;
200 ethernet_set_flags (vnm, xd->hw_if_index,
201 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
203 for (int i = 0; i < ARRAY_LEN (tx_off_caps_map); i++)
205 __typeof__ (tx_off_caps_map[0]) *v = tx_off_caps_map + i;
206 caps.mask |= v->caps;
207 if ((v->offload & txo) == v->offload)
211 vnet_hw_if_change_caps (vnm, xd->hw_if_index, &caps);
212 xd->enabled_rx_off = rxo;
213 xd->enabled_tx_off = txo;
215 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
216 dpdk_device_start (xd);
218 if (vec_len (xd->errors))
224 xd->flags |= DPDK_DEVICE_FLAG_PMD_INIT_FAIL;
225 sw->flags |= VNET_SW_INTERFACE_FLAG_ERROR;
228 static clib_error_t *
229 dpdk_rx_read_ready (clib_file_t *uf)
231 vnet_main_t *vnm = vnet_get_main ();
232 dpdk_main_t *dm = &dpdk_main;
233 u32 qidx = uf->private_data;
234 vnet_hw_if_rx_queue_t *rxq = vnet_hw_if_get_rx_queue (vnm, qidx);
235 dpdk_device_t *xd = vec_elt_at_index (dm->devices, rxq->dev_instance);
238 CLIB_UNUSED (ssize_t size) = read (uf->file_descriptor, &b, sizeof (b));
239 if (rxq->mode != VNET_HW_IF_RX_MODE_POLLING)
241 vnet_hw_if_rx_queue_set_int_pending (vnm, uf->private_data);
242 rte_eth_dev_rx_intr_enable (xd->port_id, rxq->queue_id);
249 dpdk_setup_interrupts (dpdk_device_t *xd)
251 vnet_main_t *vnm = vnet_get_main ();
252 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
257 if (!xd->port_conf.intr_conf.rxq)
260 /* Probe for interrupt support */
261 if (rte_eth_dev_rx_intr_enable (xd->port_id, 0))
263 dpdk_log_info ("probe for interrupt mode for device %U. Failed.\n",
264 format_dpdk_device_name, xd->port_id);
268 xd->flags |= DPDK_DEVICE_FLAG_INT_SUPPORTED;
269 if (!(xd->flags & DPDK_DEVICE_FLAG_INT_UNMASKABLE))
270 rte_eth_dev_rx_intr_disable (xd->port_id, 0);
271 dpdk_log_info ("Probe for interrupt mode for device %U. Success.\n",
272 format_dpdk_device_name, xd->port_id);
275 if (xd->flags & DPDK_DEVICE_FLAG_INT_SUPPORTED)
278 for (int q = 0; q < xd->conf.n_rx_queues; q++)
280 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
281 clib_file_t f = { 0 };
282 rxq->efd = rte_eth_dev_rx_intr_ctl_q_get_fd (xd->port_id, q);
285 xd->flags &= ~DPDK_DEVICE_FLAG_INT_SUPPORTED;
289 f.read_function = dpdk_rx_read_ready;
290 f.flags = UNIX_FILE_EVENT_EDGE_TRIGGERED;
291 f.file_descriptor = rxq->efd;
292 f.private_data = rxq->queue_index;
294 format (0, "%U queue %u", format_dpdk_device_name, xd->port_id, q);
295 rxq->clib_file_index = clib_file_add (&file_main, &f);
296 vnet_hw_if_set_rx_queue_file_index (vnm, rxq->queue_index,
297 rxq->clib_file_index);
298 if (xd->flags & DPDK_DEVICE_FLAG_INT_UNMASKABLE)
300 clib_file_main_t *fm = &file_main;
302 pool_elt_at_index (fm->file_pool, rxq->clib_file_index);
303 fm->file_update (f, UNIX_FILE_UPDATE_DELETE);
309 vnet_hw_if_set_caps (vnm, hi->hw_if_index, VNET_HW_IF_CAP_INT_MODE);
311 vnet_hw_if_unset_caps (vnm, hi->hw_if_index, VNET_HW_IF_CAP_INT_MODE);
312 vnet_hw_if_update_runtime_data (vnm, xd->hw_if_index);
316 dpdk_device_start (dpdk_device_t * xd)
320 if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL)
323 rv = rte_eth_dev_start (xd->port_id);
327 dpdk_device_error (xd, "rte_eth_dev_start", rv);
331 dpdk_setup_interrupts (xd);
333 if (xd->default_mac_address)
334 rv = rte_eth_dev_default_mac_addr_set (xd->port_id,
335 (void *) xd->default_mac_address);
338 dpdk_device_error (xd, "rte_eth_dev_default_mac_addr_set", rv);
340 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
341 rte_eth_promiscuous_enable (xd->port_id);
343 rte_eth_promiscuous_disable (xd->port_id);
345 rte_eth_allmulticast_enable (xd->port_id);
347 dpdk_log_info ("Interface %U started",
348 format_dpdk_device_name, xd->port_id);
352 dpdk_device_stop (dpdk_device_t * xd)
354 if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL)
357 rte_eth_allmulticast_disable (xd->port_id);
358 rte_eth_dev_stop (xd->port_id);
359 clib_memset (&xd->link, 0, sizeof (struct rte_eth_link));
361 dpdk_log_info ("Interface %U stopped",
362 format_dpdk_device_name, xd->port_id);
365 void vl_api_force_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
368 dpdk_port_state_callback_inline (dpdk_portid_t port_id,
369 enum rte_eth_event_type type, void *param)
371 struct rte_eth_link link;
373 RTE_SET_USED (param);
374 if (type != RTE_ETH_EVENT_INTR_LSC)
376 dpdk_log_info ("Unknown event %d received for port %d", type, port_id);
380 rte_eth_link_get_nowait (port_id, &link);
381 u8 link_up = link.link_status;
383 dpdk_log_info ("Port %d Link Up - speed %u Mbps - %s",
384 port_id, (unsigned) link.link_speed,
385 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
386 "full-duplex" : "half-duplex");
388 dpdk_log_info ("Port %d Link Down\n\n", port_id);
394 dpdk_port_state_callback (dpdk_portid_t port_id,
395 enum rte_eth_event_type type,
397 void *ret_param __attribute__ ((unused)))
399 return dpdk_port_state_callback_inline (port_id, type, param);
402 /* If this device is PCI return pointer to info, otherwise NULL */
403 struct rte_pci_device *
404 dpdk_get_pci_device (const struct rte_eth_dev_info *info)
406 const struct rte_bus *bus;
408 bus = rte_bus_find_by_device (info->device);
409 if (bus && !strcmp (bus->name, "pci"))
410 return RTE_DEV_TO_PCI (info->device);
415 /* If this device is VMBUS return pointer to info, otherwise NULL */
416 struct rte_vmbus_device *
417 dpdk_get_vmbus_device (const struct rte_eth_dev_info *info)
419 const struct rte_bus *bus;
421 bus = rte_bus_find_by_device (info->device);
422 if (bus && !strcmp (bus->name, "vmbus"))
423 return container_of (info->device, struct rte_vmbus_device, device);
429 * fd.io coding-style-patch-verification: ON
432 * eval: (c-set-style "gnu")