FD.io VPP  v17.04.2-2-ga8f93f8
Vector Packet Processing
dpdk_priv.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015 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 #define rte_mbuf_from_vlib_buffer(x) (((struct rte_mbuf *)x) - 1)
17 #define vlib_buffer_from_rte_mbuf(x) ((vlib_buffer_t *)(x+1))
18 
19 #define DPDK_NB_RX_DESC_DEFAULT 1024
20 #define DPDK_NB_TX_DESC_DEFAULT 1024
21 #define DPDK_NB_RX_DESC_VIRTIO 256
22 #define DPDK_NB_TX_DESC_VIRTIO 256
23 
24 #define I40E_DEV_ID_SFP_XL710 0x1572
25 #define I40E_DEV_ID_QSFP_A 0x1583
26 #define I40E_DEV_ID_QSFP_B 0x1584
27 #define I40E_DEV_ID_QSFP_C 0x1585
28 #define I40E_DEV_ID_10G_BASE_T 0x1586
29 #define I40E_DEV_ID_VF 0x154C
30 
31 /* These args appear by themselves */
32 #define foreach_eal_double_hyphen_predicate_arg \
33 _(no-shconf) \
34 _(no-hpet) \
35 _(no-huge) \
36 _(vmware-tsc-map)
37 
38 #define foreach_eal_single_hyphen_mandatory_arg \
39 _(coremask, c) \
40 _(nchannels, n) \
41 
42 #define foreach_eal_single_hyphen_arg \
43 _(blacklist, b) \
44 _(mem-alloc-request, m) \
45 _(force-ranks, r)
46 
47 /* These args are preceeded by "--" and followed by a single string */
48 #define foreach_eal_double_hyphen_arg \
49 _(huge-dir) \
50 _(proc-type) \
51 _(file-prefix) \
52 _(vdev)
53 
54 static inline void
56 {
57  int len;
58  if ((len = rte_eth_xstats_get (xd->device_index, NULL, 0)) > 0)
59  {
60  vec_validate (xd->xstats, len - 1);
61  vec_validate (xd->last_cleared_xstats, len - 1);
62 
63  len =
64  rte_eth_xstats_get (xd->device_index, xd->xstats,
65  vec_len (xd->xstats));
66 
67  ASSERT (vec_len (xd->xstats) == len);
68  ASSERT (vec_len (xd->last_cleared_xstats) == len);
69 
70  _vec_len (xd->xstats) = len;
71  _vec_len (xd->last_cleared_xstats) = len;
72 
73  }
74 }
75 
76 
77 static inline void
79 {
81  vnet_main_t *vnm = vnet_get_main ();
82  u32 my_cpu = os_get_cpu_number ();
83  u64 rxerrors, last_rxerrors;
84 
85  /* only update counters for PMD interfaces */
86  if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
87  return;
88 
89  xd->time_last_stats_update = now ? now : xd->time_last_stats_update;
90  clib_memcpy (&xd->last_stats, &xd->stats, sizeof (xd->last_stats));
91  rte_eth_stats_get (xd->device_index, &xd->stats);
92 
93  /* maybe bump interface rx no buffer counter */
94  if (PREDICT_FALSE (xd->stats.rx_nombuf != xd->last_stats.rx_nombuf))
95  {
98 
100  xd->stats.rx_nombuf -
101  xd->last_stats.rx_nombuf);
102  }
103 
104  /* missed pkt counter */
105  if (PREDICT_FALSE (xd->stats.imissed != xd->last_stats.imissed))
106  {
109 
111  xd->stats.imissed -
112  xd->last_stats.imissed);
113  }
114  rxerrors = xd->stats.ierrors;
115  last_rxerrors = xd->last_stats.ierrors;
116 
117  if (PREDICT_FALSE (rxerrors != last_rxerrors))
118  {
121 
123  rxerrors - last_rxerrors);
124  }
125 
126  dpdk_get_xstats (xd);
127 }
128 
129 /*
130  * fd.io coding-style-patch-verification: ON
131  *
132  * Local Variables:
133  * eval: (c-set-style "gnu")
134  * End:
135  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:436
vnet_main_t * vnet_get_main(void)
Definition: misc.c:46
struct rte_eth_stats last_stats
Definition: dpdk.h:230
vnet_interface_main_t interface_main
Definition: vnet.h:57
#define NULL
Definition: clib.h:55
u16 flags
Definition: dpdk.h:194
struct rte_eth_xstat * last_cleared_xstats
Definition: dpdk.h:233
#define DPDK_DEVICE_FLAG_PMD
Definition: dpdk.h:197
struct rte_eth_stats stats
Definition: dpdk.h:229
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
unsigned long u64
Definition: types.h:89
A collection of simple counters.
Definition: counter.h:58
static void dpdk_get_xstats(dpdk_device_t *xd)
Definition: dpdk_priv.h:55
u32 device_index
Definition: dpdk.h:176
f64 time_last_stats_update
Definition: dpdk.h:234
u32 vlib_sw_if_index
Definition: dpdk.h:179
uword os_get_cpu_number(void)
Definition: unix-misc.c:224
#define PREDICT_FALSE(x)
Definition: clib.h:97
vlib_simple_counter_main_t * sw_if_counters
Definition: interface.h:625
static void dpdk_update_counters(dpdk_device_t *xd, f64 now)
Definition: dpdk_priv.h:78
#define clib_memcpy(a, b, c)
Definition: string.h:69
struct rte_eth_xstat * xstats
Definition: dpdk.h:232
#define ASSERT(truth)
unsigned int u32
Definition: types.h:88
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
double f64
Definition: types.h:142
static void vlib_increment_simple_counter(vlib_simple_counter_main_t *cm, u32 cpu_index, u32 index, u64 increment)
Increment a simple counter.
Definition: counter.h:78