2 * Copyright (c) 2019 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 <vlib/unix/cj.h>
22 #include <vnet/ip/ip.h>
23 #include <vnet/ethernet/ethernet.h>
24 #include <vnet/ethernet/arp_packet.h>
25 #include <vnet/vxlan/vxlan.h>
26 #include <dpdk/device/dpdk.h>
28 #include <dpdk/device/dpdk_priv.h>
29 #include <vppinfra/error.h>
31 /* constant structs */
32 static const struct rte_flow_attr ingress = {.ingress = 1 };
33 static const struct rte_flow_item_eth any_eth[2] = { };
34 static const struct rte_flow_item_vlan any_vlan[2] = { };
37 dpdk_flow_add (dpdk_device_t * xd, vnet_flow_t * f, dpdk_flow_entry_t * fe)
39 struct rte_flow_item_ipv4 ip4[2] = { };
40 struct rte_flow_item_ipv6 ip6[2] = { };
41 struct rte_flow_item_udp udp[2] = { };
42 struct rte_flow_item_tcp tcp[2] = { };
43 struct rte_flow_action_mark mark = { 0 };
44 struct rte_flow_item *item, *items = 0;
45 struct rte_flow_action *action, *actions = 0;
49 vxlan_hdr_sz = sizeof (vxlan_header_t),
50 raw_sz = sizeof (struct rte_flow_item_raw)
55 struct rte_flow_item_raw item;
56 u8 val[raw_sz + vxlan_hdr_sz];
59 u16 src_port, dst_port, src_port_mask, dst_port_mask;
63 if (f->actions & (~xd->supported_flow_actions))
64 return VNET_FLOW_ERROR_NOT_SUPPORTED;
68 vec_add2 (items, item, 1);
69 item->type = RTE_FLOW_ITEM_TYPE_ETH;
71 item->mask = any_eth + 1;
74 if (f->type != VNET_FLOW_TYPE_IP4_VXLAN)
76 vec_add2 (items, item, 1);
77 item->type = RTE_FLOW_ITEM_TYPE_VLAN;
78 item->spec = any_vlan;
79 item->mask = any_vlan + 1;
83 vec_add2 (items, item, 1);
84 if (f->type == VNET_FLOW_TYPE_IP6_N_TUPLE)
86 vnet_flow_ip6_n_tuple_t *t6 = &f->ip6_n_tuple;
87 clib_memcpy (ip6[0].hdr.src_addr, &t6->src_addr.addr, 16);
88 clib_memcpy (ip6[1].hdr.src_addr, &t6->src_addr.mask, 16);
89 clib_memcpy (ip6[0].hdr.dst_addr, &t6->dst_addr.addr, 16);
90 clib_memcpy (ip6[1].hdr.dst_addr, &t6->dst_addr.mask, 16);
91 item->type = RTE_FLOW_ITEM_TYPE_IPV6;
95 src_port = t6->src_port.port;
96 dst_port = t6->dst_port.port;
97 src_port_mask = t6->src_port.mask;
98 dst_port_mask = t6->dst_port.mask;
99 protocol = t6->protocol;
101 else if (f->type == VNET_FLOW_TYPE_IP4_N_TUPLE)
103 vnet_flow_ip4_n_tuple_t *t4 = &f->ip4_n_tuple;
104 ip4[0].hdr.src_addr = t4->src_addr.addr.as_u32;
105 ip4[1].hdr.src_addr = t4->src_addr.mask.as_u32;
106 ip4[0].hdr.dst_addr = t4->dst_addr.addr.as_u32;
107 ip4[1].hdr.dst_addr = t4->dst_addr.mask.as_u32;
108 item->type = RTE_FLOW_ITEM_TYPE_IPV4;
110 item->mask = ip4 + 1;
112 src_port = t4->src_port.port;
113 dst_port = t4->dst_port.port;
114 src_port_mask = t4->src_port.mask;
115 dst_port_mask = t4->dst_port.mask;
116 protocol = t4->protocol;
118 else if (f->type == VNET_FLOW_TYPE_IP4_VXLAN)
120 vnet_flow_ip4_vxlan_t *v4 = &f->ip4_vxlan;
121 ip4[0].hdr.src_addr = v4->src_addr.as_u32;
122 ip4[1].hdr.src_addr = -1;
123 ip4[0].hdr.dst_addr = v4->dst_addr.as_u32;
124 ip4[1].hdr.dst_addr = -1;
125 item->type = RTE_FLOW_ITEM_TYPE_IPV4;
127 item->mask = ip4 + 1;
129 dst_port = v4->dst_port;
133 protocol = IP_PROTOCOL_UDP;
137 rv = VNET_FLOW_ERROR_NOT_SUPPORTED;
142 vec_add2 (items, item, 1);
143 if (protocol == IP_PROTOCOL_UDP)
145 udp[0].hdr.src_port = clib_host_to_net_u16 (src_port);
146 udp[1].hdr.src_port = clib_host_to_net_u16 (src_port_mask);
147 udp[0].hdr.dst_port = clib_host_to_net_u16 (dst_port);
148 udp[1].hdr.dst_port = clib_host_to_net_u16 (dst_port_mask);
149 item->type = RTE_FLOW_ITEM_TYPE_UDP;
151 item->mask = udp + 1;
153 else if (protocol == IP_PROTOCOL_TCP)
155 tcp[0].hdr.src_port = clib_host_to_net_u16 (src_port);
156 tcp[1].hdr.src_port = clib_host_to_net_u16 (src_port_mask);
157 tcp[0].hdr.dst_port = clib_host_to_net_u16 (dst_port);
158 tcp[1].hdr.dst_port = clib_host_to_net_u16 (dst_port_mask);
159 item->type = RTE_FLOW_ITEM_TYPE_TCP;
161 item->mask = tcp + 1;
165 rv = VNET_FLOW_ERROR_NOT_SUPPORTED;
169 /* Tunnel header match */
170 if (f->type == VNET_FLOW_TYPE_IP4_VXLAN)
172 u32 vni = f->ip4_vxlan.vni;
173 vxlan_header_t spec_hdr = {
174 .flags = VXLAN_FLAGS_I,
175 .vni_reserved = clib_host_to_net_u32 (vni << 8)
177 vxlan_header_t mask_hdr = {
179 .vni_reserved = clib_host_to_net_u32 (((u32) - 1) << 8)
182 memset (raw, 0, sizeof raw);
183 raw[0].item.relative = 1;
184 raw[0].item.length = vxlan_hdr_sz;
186 clib_memcpy (raw[0].val + raw_sz, &spec_hdr, vxlan_hdr_sz);
187 clib_memcpy (raw[1].val + raw_sz, &mask_hdr, vxlan_hdr_sz);;
189 vec_add2 (items, item, 1);
190 item->type = RTE_FLOW_ITEM_TYPE_RAW;
192 item->mask = raw + 1;
195 vec_add2 (items, item, 1);
196 item->type = RTE_FLOW_ITEM_TYPE_END;
199 vec_add2 (actions, action, 1);
200 action->type = RTE_FLOW_ACTION_TYPE_PASSTHRU;
202 vec_add2 (actions, action, 1);
204 action->type = RTE_FLOW_ACTION_TYPE_MARK;
205 action->conf = &mark;
207 vec_add2 (actions, action, 1);
208 action->type = RTE_FLOW_ACTION_TYPE_END;
210 fe->handle = rte_flow_create (xd->device_index, &ingress, items, actions,
211 &xd->last_flow_error);
214 rv = VNET_FLOW_ERROR_NOT_SUPPORTED;
223 dpdk_flow_ops_fn (vnet_main_t * vnm, vnet_flow_dev_op_t op, u32 dev_instance,
224 u32 flow_index, uword * private_data)
226 dpdk_main_t *dm = &dpdk_main;
227 vnet_flow_t *flow = vnet_get_flow (flow_index);
228 dpdk_device_t *xd = vec_elt_at_index (dm->devices, dev_instance);
229 dpdk_flow_entry_t *fe;
230 dpdk_flow_lookup_entry_t *fle = 0;
233 if (op == VNET_FLOW_DEV_OP_DEL_FLOW)
235 ASSERT (*private_data >= vec_len (xd->flow_entries));
237 fe = vec_elt_at_index (xd->flow_entries, *private_data);
239 if ((rv = rte_flow_destroy (xd->device_index, fe->handle,
240 &xd->last_flow_error)))
241 return VNET_FLOW_ERROR_INTERNAL;
243 memset (fe, 0, sizeof (*fe));
244 pool_put (xd->flow_entries, fe);
246 goto disable_rx_offload;
249 if (op != VNET_FLOW_DEV_OP_ADD_FLOW)
250 return VNET_FLOW_ERROR_NOT_SUPPORTED;
252 pool_get (xd->flow_entries, fe);
253 fe->flow_index = flow->index;
255 if (flow->actions == 0)
257 rv = VNET_FLOW_ERROR_NOT_SUPPORTED;
261 /* if we need to mark packets, assign one mark */
262 if (flow->actions & (VNET_FLOW_ACTION_MARK |
263 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
264 VNET_FLOW_ACTION_BUFFER_ADVANCE))
267 if (xd->flow_lookup_entries == 0)
268 pool_get_aligned (xd->flow_lookup_entries, fle,
269 CLIB_CACHE_LINE_BYTES);
270 pool_get_aligned (xd->flow_lookup_entries, fle, CLIB_CACHE_LINE_BYTES);
271 fe->mark = fle - xd->flow_lookup_entries;
276 if ((xd->flags & DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD) == 0)
278 xd->flags |= DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD;
279 dpdk_device_setup (xd);
284 case VNET_FLOW_TYPE_IP4_N_TUPLE:
285 case VNET_FLOW_TYPE_IP6_N_TUPLE:
286 case VNET_FLOW_TYPE_IP4_VXLAN:
287 if ((rv = dpdk_flow_add (xd, flow, fe)))
291 rv = VNET_FLOW_ERROR_NOT_SUPPORTED;
295 *private_data = fe - xd->flow_entries;
297 /* install entry in the lookup table */
298 memset (fle, -1, sizeof (*fle));
299 if (flow->actions & VNET_FLOW_ACTION_MARK)
300 fle->flow_id = flow->mark_flow_id;
301 if (flow->actions & VNET_FLOW_ACTION_REDIRECT_TO_NODE)
302 fle->next_index = flow->redirect_device_input_next_index;
303 if (flow->actions & VNET_FLOW_ACTION_BUFFER_ADVANCE)
304 fle->buffer_advance = flow->buffer_advance;
309 memset (fe, 0, sizeof (*fe));
310 pool_put (xd->flow_entries, fe);
313 memset (fle, 0, sizeof (*fle));
314 pool_put (xd->flow_lookup_entries, fle);
318 if ((xd->flags & DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD) != 0
319 && pool_elts (xd->flow_entries) == 0)
321 xd->flags &= ~DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD;
322 dpdk_device_setup (xd);
329 format_dpdk_flow (u8 * s, va_list * args)
331 u32 dev_instance = va_arg (*args, u32);
332 u32 flow_index = va_arg (*args, u32);
333 uword private_data = va_arg (*args, uword);
334 dpdk_main_t *dm = &dpdk_main;
335 dpdk_device_t *xd = vec_elt_at_index (dm->devices, dev_instance);
336 dpdk_flow_entry_t *fe;
338 if (flow_index == ~0)
340 s = format (s, "%-25s: %U\n", "supported flow actions",
341 format_flow_actions, xd->supported_flow_actions);
342 s = format (s, "%-25s: %d\n", "last DPDK error type",
343 xd->last_flow_error.type);
344 s = format (s, "%-25s: %s\n", "last DPDK error message",
345 xd->last_flow_error.message ? xd->last_flow_error.message :
350 fe = vec_elt_at_index (xd->flow_entries, private_data);
353 return format (s, "unknown flow");
355 s = format (s, "mark %u", fe->mark);
360 * fd.io coding-style-patch-verification: ON
363 * eval: (c-set-style "gnu")