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 /* clang-format off */
  44 /* These args are preceded by "--" and followed by a single string */
  45 #define foreach_eal_double_hyphen_arg           \
  46 _(huge-dir)                                     \
  47 _(proc-type)                                    \
  48 _(file-prefix)                                  \
  49 _(vdev)                                         \
  50 _(log-level)                                    \
  51 _(iova-mode)                                    \
  52 _(base-virtaddr)
  53 /* clang-format on */
  54
  55 static inline void
  56 dpdk_get_xstats (dpdk_device_t * xd)
  57 {
  58   int len, ret;
  59
  60   if (!(xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP))
  61     return;
  62
  63   len = rte_eth_xstats_get (xd->port_id, NULL, 0);
  64   if (len < 0)
  65     return;
  66
  67   vec_validate (xd->xstats, len - 1);
  68
  69   ret = rte_eth_xstats_get (xd->port_id, xd->xstats, len);
  70   if (ret < 0 || ret > len)
  71     {
  72       _vec_len (xd->xstats) = 0;
  73       return;
  74     }
  75
  76   _vec_len (xd->xstats) = len;
  77 }
  78
  79 #define DPDK_UPDATE_COUNTER(vnm, tidx, xd, stat, cnt)                         \
  80   do                                                                          \
  81     {                                                                         \
  82       u64 _v = (xd)->stats.stat;                                              \
  83       u64 _lv = (xd)->last_stats.stat;                                        \
  84       if (PREDICT_FALSE (_v != _lv))                                          \
  85         {                                                                     \
  86           if (PREDICT_FALSE (_v < _lv))                                       \
  87             dpdk_log_warn ("%v: %s counter decreased (before %lu after %lu)", \
  88                            xd->name, #stat, _lv, _v);                         \
  89           else                                                                \
  90             vlib_increment_simple_counter (                                   \
  91                 vec_elt_at_index ((vnm)->interface_main.sw_if_counters, cnt), \
  92                 (tidx), (xd)->sw_if_index, _v - _lv);                         \
  93         }                                                                     \
  94     }                                                                         \
  95   while (0)
  96
  97 static inline void
  98 dpdk_update_counters (dpdk_device_t * xd, f64 now)
  99 {
 100   vnet_main_t *vnm = vnet_get_main ();
 101   u32 thread_index = vlib_get_thread_index ();
 102
 103   /* only update counters for PMD interfaces */
 104   if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
 105     return;
 106
 107   xd->time_last_stats_update = now ? now : xd->time_last_stats_update;
 108   clib_memcpy_fast (&xd->last_stats, &xd->stats, sizeof (xd->last_stats));
 109   rte_eth_stats_get (xd->port_id, &xd->stats);
 110
 111   /* maybe bump interface rx no buffer counter */
 112   DPDK_UPDATE_COUNTER (vnm, thread_index, xd, rx_nombuf,
 113                        VNET_INTERFACE_COUNTER_RX_NO_BUF);
 114   DPDK_UPDATE_COUNTER (vnm, thread_index, xd, imissed,
 115                        VNET_INTERFACE_COUNTER_RX_MISS);
 116   DPDK_UPDATE_COUNTER (vnm, thread_index, xd, ierrors,
 117                        VNET_INTERFACE_COUNTER_RX_ERROR);
 118
 119   dpdk_get_xstats (xd);
 120 }
 121
 122 /*
 123  * fd.io coding-style-patch-verification: ON
 124  *
 125  * Local Variables:
 126  * eval: (c-set-style "gnu")
 127  * End:
 128  */