FD.io VPP  v18.07-34-g55fbdb9
Vector Packet Processing
common.c
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1 /*
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:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
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.
14  */
15 
16 #include <vnet/vnet.h>
17 #include <vppinfra/vec.h>
18 #include <vppinfra/format.h>
19 #include <vlib/unix/cj.h>
20 #include <assert.h>
21 
22 #include <vnet/ip/ip.h>
23 #include <vnet/ethernet/ethernet.h>
25 #include <dpdk/device/dpdk.h>
26 
27 #include <dpdk/device/dpdk_priv.h>
28 #include <vppinfra/error.h>
29 
30 void
31 dpdk_device_error (dpdk_device_t * xd, char *str, int rv)
32 {
33  dpdk_log_err ("Interface %U error %d: %s",
34  format_dpdk_device_name, xd->port_id, rv, rte_strerror (rv));
35  xd->errors = clib_error_return (xd->errors, "%s[port:%d, errno:%d]: %s",
36  str, xd->port_id, rv, rte_strerror (rv));
37 }
38 
39 void
41 {
42  dpdk_main_t *dm = &dpdk_main;
43  vnet_main_t *vnm = vnet_get_main ();
46  int rv;
47  int j;
48 
49  ASSERT (vlib_get_thread_index () == 0);
50 
51  clib_error_free (xd->errors);
53 
54  if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
55  {
57  dpdk_device_stop (xd);
58  }
59 
60  /* Enable flow director when flows exist */
61  if (xd->pmd == VNET_DPDK_PMD_I40E)
62  {
63  if ((xd->flags & DPDK_DEVICE_FLAG_RX_FLOW_OFFLOAD) != 0)
64  xd->port_conf.fdir_conf.mode = RTE_FDIR_MODE_PERFECT;
65  else
66  xd->port_conf.fdir_conf.mode = RTE_FDIR_MODE_NONE;
67  }
68 
69  rv = rte_eth_dev_configure (xd->port_id, xd->rx_q_used,
70  xd->tx_q_used, &xd->port_conf);
71 
72  if (rv < 0)
73  {
74  dpdk_device_error (xd, "rte_eth_dev_configure", rv);
75  goto error;
76  }
77 
78  /* Set up one TX-queue per worker thread */
79  for (j = 0; j < xd->tx_q_used; j++)
80  {
81  rv =
82  rte_eth_tx_queue_setup (xd->port_id, j, xd->nb_tx_desc,
83  xd->cpu_socket, &xd->tx_conf);
84 
85  /* retry with any other CPU socket */
86  if (rv < 0)
87  rv =
88  rte_eth_tx_queue_setup (xd->port_id, j,
89  xd->nb_tx_desc, SOCKET_ID_ANY,
90  &xd->tx_conf);
91  if (rv < 0)
92  dpdk_device_error (xd, "rte_eth_tx_queue_setup", rv);
93  }
94 
97  for (j = 0; j < xd->rx_q_used; j++)
98  {
101  xd->hw_if_index, j);
102  unsigned lcore = vlib_worker_threads[tidx].lcore_id;
103  u16 socket_id = rte_lcore_to_socket_id (lcore);
104 
105  rv =
106  rte_eth_rx_queue_setup (xd->port_id, j, xd->nb_rx_desc,
107  xd->cpu_socket, 0,
108  dm->pktmbuf_pools[socket_id]);
109 
110  /* retry with any other CPU socket */
111  if (rv < 0)
112  rv =
113  rte_eth_rx_queue_setup (xd->port_id, j,
114  xd->nb_rx_desc, SOCKET_ID_ANY, 0,
115  dm->pktmbuf_pools[socket_id]);
116 
117  privp = rte_mempool_get_priv (dm->pktmbuf_pools[socket_id]);
119 
120  if (rv < 0)
121  dpdk_device_error (xd, "rte_eth_rx_queue_setup", rv);
122  }
123 
124  if (vec_len (xd->errors))
125  goto error;
126 
127  rte_eth_dev_set_mtu (xd->port_id, hi->max_packet_bytes);
128 
129  if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
130  dpdk_device_start (xd);
131 
132  if (vec_len (xd->errors))
133  goto error;
134 
135  return;
136 
137 error:
138  xd->flags |= DPDK_DEVICE_FLAG_PMD_INIT_FAIL;
140 }
141 
142 void
144 {
145  int rv;
146 
147  if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL)
148  return;
149 
150  rv = rte_eth_dev_start (xd->port_id);
151 
152  if (rv)
153  {
154  dpdk_device_error (xd, "rte_eth_dev_start", rv);
155  return;
156  }
157 
158  if (xd->default_mac_address)
159  rv =
160  rte_eth_dev_default_mac_addr_set (xd->port_id,
161  (struct ether_addr *)
162  xd->default_mac_address);
163 
164  if (rv)
165  dpdk_device_error (xd, "rte_eth_dev_default_mac_addr_set", rv);
166 
167  if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
168  rte_eth_promiscuous_enable (xd->port_id);
169  else
170  rte_eth_promiscuous_disable (xd->port_id);
171 
172  rte_eth_allmulticast_enable (xd->port_id);
173 
174  if (xd->pmd == VNET_DPDK_PMD_BOND)
175  {
176  dpdk_portid_t slink[16];
177  int nlink = rte_eth_bond_slaves_get (xd->port_id, slink, 16);
178  while (nlink >= 1)
179  {
180  dpdk_portid_t dpdk_port = slink[--nlink];
181  rte_eth_allmulticast_enable (dpdk_port);
182  }
183  }
184 
185  dpdk_log_info ("Interface %U started",
187 }
188 
189 void
191 {
192  if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL)
193  return;
194 
195  rte_eth_allmulticast_disable (xd->port_id);
196  rte_eth_dev_stop (xd->port_id);
197 
198  /* For bonded interface, stop slave links */
199  if (xd->pmd == VNET_DPDK_PMD_BOND)
200  {
201  dpdk_portid_t slink[16];
202  int nlink = rte_eth_bond_slaves_get (xd->port_id, slink, 16);
203  while (nlink >= 1)
204  {
205  dpdk_portid_t dpdk_port = slink[--nlink];
206  rte_eth_dev_stop (dpdk_port);
207  }
208  }
209  dpdk_log_info ("Interface %U stopped",
211 }
212 
213 /* Even type for send_garp_na_process */
214 enum
215 {
218 
220 
221 static uword
224 {
225  uword event_type, *event_data = 0;
226 
227  while (1)
228  {
229  u32 i;
230  uword dpdk_port;
232  event_type = vlib_process_get_events (vm, &event_data);
233  ASSERT (event_type == SEND_GARP_NA);
234  for (i = 0; i < vec_len (event_data); i++)
235  {
236  dpdk_port = event_data[i];
237  if (i < 5) /* wait 0.2 sec for link to settle, max total 1 sec */
238  vlib_process_suspend (vm, 0.2);
239  dpdk_device_t *xd = &dpdk_main.devices[dpdk_port];
241  send_ip4_garp (vm, xd->sw_if_index);
242  send_ip6_na (vm, xd->sw_if_index);
243  }
244  vec_reset_length (event_data);
245  }
246  return 0;
247 }
248 
249 /* *INDENT-OFF* */
250 VLIB_REGISTER_NODE (send_garp_na_proc_node, static) = {
251  .function = send_garp_na_process,
252  .type = VLIB_NODE_TYPE_PROCESS,
253  .name = "send-garp-na-process",
254 };
255 /* *INDENT-ON* */
256 
257 void vl_api_force_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
258 
259 static void
261 {
263  ASSERT (vlib_get_thread_index () == 0);
265  (vm, send_garp_na_proc_node.index, SEND_GARP_NA, *dpdk_port);
266 }
267 
268 always_inline int
270  enum rte_eth_event_type type, void *param)
271 {
272  struct rte_eth_link link;
273  dpdk_device_t *xd = &dpdk_main.devices[port_id];
274 
275  RTE_SET_USED (param);
276  if (type != RTE_ETH_EVENT_INTR_LSC)
277  {
278  dpdk_log_info ("Unknown event %d received for port %d", type, port_id);
279  return -1;
280  }
281 
282  rte_eth_link_get_nowait (port_id, &link);
283  u8 link_up = link.link_status;
284 
285  if (xd->flags & DPDK_DEVICE_FLAG_BOND_SLAVE)
286  {
287  uword bd_port = xd->bond_port;
288  int bd_mode = rte_eth_bond_mode_get (bd_port);
289  dpdk_log_info ("Port %d state to %s, "
290  "slave of port %d BondEthernet%d in mode %d",
291  port_id, (link_up) ? "UP" : "DOWN",
292  bd_port, xd->bond_instance_num, bd_mode);
293  if (bd_mode == BONDING_MODE_ACTIVE_BACKUP)
294  {
296  (garp_na_proc_callback, (u8 *) & bd_port, sizeof (uword));
297  }
298 
299  if (link_up)
300  xd->flags |= DPDK_DEVICE_FLAG_BOND_SLAVE_UP;
301  else
302  xd->flags &= ~DPDK_DEVICE_FLAG_BOND_SLAVE_UP;
303  }
304  else /* Should not happen as callback not setup for "normal" links */
305  {
306  if (link_up)
307  dpdk_log_info ("Port %d Link Up - speed %u Mbps - %s",
308  port_id, (unsigned) link.link_speed,
309  (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
310  "full-duplex" : "half-duplex");
311  else
312  dpdk_log_info ("Port %d Link Down\n\n", port_id);
313  }
314 
315  return 0;
316 }
317 
318 int
320  enum rte_eth_event_type type,
321  void *param,
322  void *ret_param __attribute__ ((unused)))
323 {
324  return dpdk_port_state_callback_inline (port_id, type, param);
325 }
326 
327 /*
328  * fd.io coding-style-patch-verification: ON
329  *
330  * Local Variables:
331  * eval: (c-set-style "gnu")
332  * End:
333  */
u8 * default_mac_address
Definition: dpdk.h:263
vmrglw vmrglh hi
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: interface.c:541
void vl_api_force_rpc_call_main_thread(void *fp, u8 *data, u32 data_length)
Definition: vlib_api.c:649
static uword * vlib_process_wait_for_event(vlib_main_t *vm)
Definition: node_funcs.h:619
dpdk_main_t dpdk_main
Definition: init.c:42
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
u32 sw_if_index
Definition: dpdk.h:204
static f64 vlib_time_now(vlib_main_t *vm)
Definition: main.h:225
u16 flags
Definition: dpdk.h:212
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
clib_error_t * errors
Definition: dpdk.h:266
int i
static vnet_sw_interface_t * vnet_get_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
int dpdk_port_state_callback(dpdk_portid_t port_id, enum rte_eth_event_type type, void *param, void *ret_param)
Definition: common.c:319
#define vec_validate_aligned(V, I, A)
Make sure vector is long enough for given index (no header, specified alignment)
Definition: vec.h:448
void send_ip6_na(vlib_main_t *vm, u32 sw_if_index)
unsigned char u8
Definition: types.h:56
#define vec_reset_length(v)
Reset vector length to zero NULL-pointer tolerant.
static uword vlib_process_suspend(vlib_main_t *vm, f64 dt)
Suspend a vlib cooperative multi-tasking thread for a period of time.
Definition: node_funcs.h:448
dpdk_portid_t port_id
Definition: dpdk.h:201
static uword vlib_process_get_events(vlib_main_t *vm, uword **data_vector)
Return the first event type which has occurred and a vector of per-event data of that type...
Definition: node_funcs.h:542
#define always_inline
Definition: clib.h:92
#define clib_error_return(e, args...)
Definition: error.h:99
u16 rx_q_used
Definition: dpdk.h:224
unsigned int u32
Definition: types.h:88
void dpdk_device_setup(dpdk_device_t *xd)
Definition: common.c:40
struct rte_eth_conf port_conf
Definition: dpdk.h:228
static uword send_garp_na_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)
Definition: common.c:222
struct rte_eth_txconf tx_conf
Definition: dpdk.h:229
vlib_worker_thread_t * vlib_worker_threads
Definition: threads.c:35
void dpdk_device_start(dpdk_device_t *xd)
Definition: common.c:143
static_always_inline uword vnet_get_device_input_thread_index(vnet_main_t *vnm, u32 hw_if_index, u16 queue_id)
Definition: devices.h:127
static void vlib_process_signal_event(vlib_main_t *vm, uword node_index, uword type_opaque, uword data)
Definition: node_funcs.h:952
unsigned short u16
Definition: types.h:57
u16 tx_q_used
Definition: dpdk.h:223
u16 nb_rx_desc
Definition: dpdk.h:225
uint16_t dpdk_portid_t
Definition: dpdk.h:121
static void garp_na_proc_callback(uword *dpdk_port)
Definition: common.c:260
#define dpdk_log_info(...)
Definition: dpdk.h:506
u32 hw_if_index
Definition: dpdk.h:203
void send_ip4_garp(vlib_main_t *vm, u32 sw_if_index)
Definition: arp.c:2568
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:153
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:221
dpdk_device_t * devices
Definition: dpdk.h:404
vlib_main_t * vm
Definition: buffer.c:294
#define dpdk_log_err(...)
Definition: dpdk.h:500
dpdk_pmd_t pmd
Definition: dpdk.h:209
static vlib_node_registration_t send_garp_na_proc_node
(constructor) VLIB_REGISTER_NODE (send_garp_na_proc_node)
Definition: common.c:219
static int dpdk_port_state_callback_inline(dpdk_portid_t port_id, enum rte_eth_event_type type, void *param)
Definition: common.c:269
void dpdk_device_stop(dpdk_device_t *xd)
Definition: common.c:190
void dpdk_device_error(dpdk_device_t *xd, char *str, int rv)
Definition: common.c:31
#define ASSERT(truth)
format_function_t format_dpdk_device_name
Definition: dpdk.h:511
struct rte_mempool ** pktmbuf_pools
Definition: dpdk.h:443
void dpdk_update_link_state(dpdk_device_t *xd, f64 now)
Definition: init.c:1421
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
struct _vlib_node_registration vlib_node_registration_t
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
#define VNET_SW_INTERFACE_FLAG_ERROR
Definition: interface.h:676
u64 uword
Definition: types.h:112
#define clib_error_free(e)
Definition: error.h:86
i8 cpu_socket
Definition: dpdk.h:210
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:62
vnet_main_t * vnet_main
Definition: dpdk.h:439
u16 nb_tx_desc
Definition: dpdk.h:214
enum @389 dpdk_send_garp_na_process_event_t
u8 * buffer_pool_for_queue
Definition: dpdk.h:227
CLIB vectors are ubiquitous dynamically resized arrays with by user defined "headers".