FD.io VPP  v17.07.01-10-g3be13f0
Vector Packet Processing
common.c
Go to the documentation of this file.
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  xd->errors = clib_error_return (xd->errors, "%s[port:%d, errno:%d]: %s",
34  str, xd->device_index, rv,
35  rte_strerror (rv));
36 }
37 
38 void
40 {
41  dpdk_main_t *dm = &dpdk_main;
42  vnet_main_t *vnm = vnet_get_main ();
44  int rv;
45  int j;
46 
47  ASSERT (vlib_get_thread_index () == 0);
48 
49  clib_error_free (xd->errors);
51 
53  {
55  dpdk_device_stop (xd);
56  }
57 
58  rv = rte_eth_dev_configure (xd->device_index, xd->rx_q_used,
59  xd->tx_q_used, &xd->port_conf);
60 
61  if (rv < 0)
62  {
63  dpdk_device_error (xd, "rte_eth_dev_configure", rv);
64  goto error;
65  }
66 
67  /* Set up one TX-queue per worker thread */
68  for (j = 0; j < xd->tx_q_used; j++)
69  {
70  rv = rte_eth_tx_queue_setup (xd->device_index, j, xd->nb_tx_desc,
71  xd->cpu_socket, &xd->tx_conf);
72 
73  /* retry with any other CPU socket */
74  if (rv < 0)
75  rv = rte_eth_tx_queue_setup (xd->device_index, j, xd->nb_tx_desc,
76  SOCKET_ID_ANY, &xd->tx_conf);
77  if (rv < 0)
78  dpdk_device_error (xd, "rte_eth_tx_queue_setup", rv);
79  }
80 
81  for (j = 0; j < xd->rx_q_used; j++)
82  {
84  xd->hw_if_index, j);
85  unsigned lcore = vlib_worker_threads[tidx].lcore_id;
86  u16 socket_id = rte_lcore_to_socket_id (lcore);
87 
88  rv = rte_eth_rx_queue_setup (xd->device_index, j, xd->nb_rx_desc,
89  xd->cpu_socket, 0,
90  dm->pktmbuf_pools[socket_id]);
91 
92  /* retry with any other CPU socket */
93  if (rv < 0)
94  rv = rte_eth_rx_queue_setup (xd->device_index, j, xd->nb_rx_desc,
95  SOCKET_ID_ANY, 0,
96  dm->pktmbuf_pools[socket_id]);
97 
98  if (rv < 0)
99  dpdk_device_error (xd, "rte_eth_rx_queue_setup", rv);
100  }
101 
102  if (vec_len (xd->errors))
103  goto error;
104 
106  dpdk_device_start (xd);
107 
108  if (vec_len (xd->errors))
109  goto error;
110 
111  return;
112 
113 error:
116 }
117 
118 void
120 {
121  int rv;
122 
124  return;
125 
126  rv = rte_eth_dev_start (xd->device_index);
127 
128  if (rv)
129  {
130  dpdk_device_error (xd, "rte_eth_dev_start", rv);
131  return;
132  }
133 
134  if (xd->default_mac_address)
135  rv =
136  rte_eth_dev_default_mac_addr_set (xd->device_index,
137  (struct ether_addr *)
138  xd->default_mac_address);
139 
140  if (rv)
141  dpdk_device_error (xd, "rte_eth_dev_default_mac_addr_set", rv);
142 
144  rte_eth_promiscuous_enable (xd->device_index);
145  else
146  rte_eth_promiscuous_disable (xd->device_index);
147 
148  rte_eth_allmulticast_enable (xd->device_index);
149 
150  if (xd->pmd == VNET_DPDK_PMD_BOND)
151  {
152  u8 slink[16];
153  int nlink = rte_eth_bond_slaves_get (xd->device_index, slink, 16);
154  while (nlink >= 1)
155  {
156  u8 dpdk_port = slink[--nlink];
157  rte_eth_allmulticast_enable (dpdk_port);
158  }
159  }
160 }
161 
162 void
164 {
166  return;
167 
168  rte_eth_allmulticast_disable (xd->device_index);
169  rte_eth_dev_stop (xd->device_index);
170 
171  /* For bonded interface, stop slave links */
172  if (xd->pmd == VNET_DPDK_PMD_BOND)
173  {
174  u8 slink[16];
175  int nlink = rte_eth_bond_slaves_get (xd->device_index, slink, 16);
176  while (nlink >= 1)
177  {
178  u8 dpdk_port = slink[--nlink];
179  rte_eth_dev_stop (dpdk_port);
180  }
181  }
182 }
183 
184 void
185 dpdk_port_state_callback (uint8_t port_id,
186  enum rte_eth_event_type type, void *param)
187 {
188  struct rte_eth_link link;
189  vlib_main_t *vm = vlib_get_main ();
190  dpdk_device_t *xd = &dpdk_main.devices[port_id];
191 
192  RTE_SET_USED (param);
193  if (type != RTE_ETH_EVENT_INTR_LSC)
194  {
195  clib_warning ("Unknown event %d received for port %d", type, port_id);
196  return;
197  }
198 
199  rte_eth_link_get_nowait (port_id, &link);
200  u8 link_up = link.link_status;
201 
203  {
204  u8 bd_port = xd->bond_port;
205  int bd_mode = rte_eth_bond_mode_get (bd_port);
206 
207  if ((link_up && !(xd->flags & DPDK_DEVICE_FLAG_BOND_SLAVE_UP)) ||
208  (!link_up && (xd->flags & DPDK_DEVICE_FLAG_BOND_SLAVE_UP)))
209  {
210  clib_warning ("Port %d state to %s, "
211  "slave of port %d BondEthernet%d in mode %d",
212  port_id, (link_up) ? "UP" : "DOWN",
213  bd_port, xd->port_id, bd_mode);
214  if (bd_mode == BONDING_MODE_ACTIVE_BACKUP)
215  {
216  rte_eth_link_get_nowait (bd_port, &link);
217  if (link.link_status) /* bonded interface up */
218  {
219  u32 hw_if_index = dpdk_main.devices[bd_port].hw_if_index;
222  hw_if_index);
223  }
224  }
225  }
226  if (link_up) /* Update slave link status */
228  else
230  }
231  else /* Should not happen as callback not setup for "normal" links */
232  {
233  if (link_up)
234  clib_warning ("Port %d Link Up - speed %u Mbps - %s",
235  port_id, (unsigned) link.link_speed,
236  (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
237  "full-duplex" : "half-duplex");
238  else
239  clib_warning ("Port %d Link Down\n\n", port_id);
240  }
241 }
242 
243 /*
244  * fd.io coding-style-patch-verification: ON
245  *
246  * Local Variables:
247  * eval: (c-set-style "gnu")
248  * End:
249  */
#define DPDK_DEVICE_FLAG_PROMISC
Definition: dpdk.h:171
u8 * default_mac_address
Definition: dpdk.h:219
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: interface.c:537
#define DPDK_DEVICE_FLAG_PMD_INIT_FAIL
Definition: dpdk.h:173
dpdk_main_t dpdk_main
Definition: init.c:36
vnet_main_t * vnet_get_main(void)
Definition: misc.c:46
u16 flags
Definition: dpdk.h:169
clib_error_t * errors
Definition: dpdk.h:222
static vnet_sw_interface_t * vnet_get_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
void dpdk_port_state_callback(uint8_t port_id, enum rte_eth_event_type type, void *param)
Definition: common.c:185
u8 port_id
Definition: dpdk.h:201
u32 send_garp_na_process_node_index
Definition: arp.c:114
#define clib_error_return(e, args...)
Definition: error.h:99
u16 rx_q_used
Definition: dpdk.h:190
void dpdk_device_setup(dpdk_device_t *xd)
Definition: common.c:39
u32 device_index
Definition: dpdk.h:151
struct rte_eth_conf port_conf
Definition: dpdk.h:193
u32 vlib_sw_if_index
Definition: dpdk.h:154
struct rte_eth_txconf tx_conf
Definition: dpdk.h:194
vlib_worker_thread_t * vlib_worker_threads
Definition: threads.c:35
void dpdk_device_start(dpdk_device_t *xd)
Definition: common.c:119
static_always_inline uword vnet_get_device_input_thread_index(vnet_main_t *vnm, u32 hw_if_index, u16 queue_id)
Definition: devices.h:126
static void vlib_process_signal_event(vlib_main_t *vm, uword node_index, uword type_opaque, uword data)
Definition: node_funcs.h:946
u16 tx_q_used
Definition: dpdk.h:189
u16 nb_rx_desc
Definition: dpdk.h:191
u32 hw_if_index
Definition: dpdk.h:153
#define DPDK_DEVICE_FLAG_ADMIN_UP
Definition: dpdk.h:170
u8 bond_port
Definition: dpdk.h:205
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:185
dpdk_device_t * devices
Definition: dpdk.h:337
#define clib_warning(format, args...)
Definition: error.h:59
dpdk_pmd_t pmd
Definition: dpdk.h:166
void dpdk_device_stop(dpdk_device_t *xd)
Definition: common.c:163
void dpdk_device_error(dpdk_device_t *xd, char *str, int rv)
Definition: common.c:31
#define ASSERT(truth)
unsigned int u32
Definition: types.h:88
struct rte_mempool ** pktmbuf_pools
Definition: dpdk.h:387
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
u64 uword
Definition: types.h:112
unsigned short u16
Definition: types.h:57
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
#define VNET_SW_INTERFACE_FLAG_ERROR
Definition: interface.h:575
unsigned char u8
Definition: types.h:56
#define DPDK_DEVICE_FLAG_BOND_SLAVE
Definition: dpdk.h:177
#define clib_error_free(e)
Definition: error.h:86
i8 cpu_socket
Definition: dpdk.h:167
vnet_main_t * vnet_main
Definition: dpdk.h:383
u16 nb_tx_desc
Definition: dpdk.h:180
CLIB vectors are ubiquitous dynamically resized arrays with by user defined "headers".
#define DPDK_DEVICE_FLAG_BOND_SLAVE_UP
Definition: dpdk.h:178