src/plugins/dpdk/device/dpdk_priv.h

   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 DPDK_NB_RX_DESC_DEFAULT   1024
  17 #define DPDK_NB_TX_DESC_DEFAULT   1024
  18 #define DPDK_NB_RX_DESC_VIRTIO    256
  19 #define DPDK_NB_TX_DESC_VIRTIO    256
  20
  21 #define I40E_DEV_ID_SFP_XL710           0x1572
  22 #define I40E_DEV_ID_QSFP_A              0x1583
  23 #define I40E_DEV_ID_QSFP_B              0x1584
  24 #define I40E_DEV_ID_QSFP_C              0x1585
  25 #define I40E_DEV_ID_10G_BASE_T          0x1586
  26 #define I40E_DEV_ID_VF                  0x154C
  27
  28 /* These args appear by themselves */
  29 #define foreach_eal_double_hyphen_predicate_arg \
  30 _(no-shconf)                                    \
  31 _(no-hpet)                                      \
  32 _(no-huge)                                      \
  33 _(vmware-tsc-map)
  34
  35 #define foreach_eal_single_hyphen_mandatory_arg \
  36 _(coremask, c)                                  \
  37 _(nchannels, n)                                 \
  38
  39 #define foreach_eal_single_hyphen_arg           \
  40 _(mem-alloc-request, m)                         \
  41 _(force-ranks, r)
  42
  43 /* These args are preceded by "--" and followed by a single string */
  44 #define foreach_eal_double_hyphen_arg           \
  45 _(huge-dir)                                     \
  46 _(proc-type)                                    \
  47 _(file-prefix)                                  \
  48 _(vdev)                                         \
  49 _(log-level)                                    \
  50 _(iova-mode)
  51
  52 static inline void
  53 dpdk_get_xstats (dpdk_device_t * xd)
  54 {
  55   int len, ret;
  56
  57   if (!(xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP))
  58     return;
  59
  60   len = rte_eth_xstats_get (xd->port_id, NULL, 0);
  61   if (len < 0)
  62     return;
  63
  64   vec_validate (xd->xstats, len - 1);
  65
  66   ret = rte_eth_xstats_get (xd->port_id, xd->xstats, len);
  67   if (ret < 0 || ret > len)
  68     {
  69       _vec_len (xd->xstats) = 0;
  70       return;
  71     }
  72
  73   _vec_len (xd->xstats) = len;
  74 }
  75
  76 #define DPDK_UPDATE_COUNTER(vnm, tidx, xd, stat, cnt)                         \
  77   do                                                                          \
  78     {                                                                         \
  79       u64 _v = (xd)->stats.stat;                                              \
  80       u64 _lv = (xd)->last_stats.stat;                                        \
  81       if (PREDICT_FALSE (_v != _lv))                                          \
  82         {                                                                     \
  83           if (PREDICT_FALSE (_v < _lv))                                       \
  84             dpdk_log_warn ("%v: %s counter decreased (before %lu after %lu)", \
  85                            xd->name, #stat, _lv, _v);                         \
  86           else                                                                \
  87             vlib_increment_simple_counter (                                   \
  88                 vec_elt_at_index ((vnm)->interface_main.sw_if_counters, cnt), \
  89                 (tidx), (xd)->sw_if_index, _v - _lv);                         \
  90         }                                                                     \
  91     }                                                                         \
  92   while (0)
  93
  94 static inline void
  95 dpdk_update_counters (dpdk_device_t * xd, f64 now)
  96 {
  97   vnet_main_t *vnm = vnet_get_main ();
  98   u32 thread_index = vlib_get_thread_index ();
  99
 100   /* only update counters for PMD interfaces */
 101   if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
 102     return;
 103
 104   xd->time_last_stats_update = now ? now : xd->time_last_stats_update;
 105   clib_memcpy_fast (&xd->last_stats, &xd->stats, sizeof (xd->last_stats));
 106   rte_eth_stats_get (xd->port_id, &xd->stats);
 107
 108   /* maybe bump interface rx no buffer counter */
 109   DPDK_UPDATE_COUNTER (vnm, thread_index, xd, rx_nombuf,
 110                        VNET_INTERFACE_COUNTER_RX_NO_BUF);
 111   DPDK_UPDATE_COUNTER (vnm, thread_index, xd, imissed,
 112                        VNET_INTERFACE_COUNTER_RX_MISS);
 113   DPDK_UPDATE_COUNTER (vnm, thread_index, xd, ierrors,
 114                        VNET_INTERFACE_COUNTER_RX_ERROR);
 115
 116   dpdk_get_xstats (xd);
 117 }
 118
 119 /*
 120  * fd.io coding-style-patch-verification: ON
 121  *
 122  * Local Variables:
 123  * eval: (c-set-style "gnu")
 124  * End:
 125  */