ceph/src/seastar/dpdk/drivers/net/ark/ark_udm.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright (c) 2015-2018 Atomic Rules LLC
   3  */
   4
   5 #include <unistd.h>
   6
   7 #include "ark_logs.h"
   8 #include "ark_udm.h"
   9
  10 int
  11 ark_udm_verify(struct ark_udm_t *udm)
  12 {
  13         if (sizeof(struct ark_udm_t) != ARK_UDM_EXPECT_SIZE) {
  14                 PMD_DRV_LOG(ERR,
  15                             "ARK: UDM structure looks incorrect %d vs %zd\n",
  16                             ARK_UDM_EXPECT_SIZE, sizeof(struct ark_udm_t));
  17                 return -1;
  18         }
  19
  20         if (udm->setup.const0 != ARK_UDM_CONST) {
  21                 PMD_DRV_LOG(ERR,
  22                             "ARK: UDM module not found as expected 0x%08x\n",
  23                             udm->setup.const0);
  24                 return -1;
  25         }
  26         return 0;
  27 }
  28
  29 int
  30 ark_udm_stop(struct ark_udm_t *udm, const int wait)
  31 {
  32         int cnt = 0;
  33
  34         udm->cfg.command = 2;
  35
  36         while (wait && (udm->cfg.stop_flushed & 0x01) == 0) {
  37                 if (cnt++ > 1000)
  38                         return 1;
  39
  40                 usleep(10);
  41         }
  42         return 0;
  43 }
  44
  45 int
  46 ark_udm_reset(struct ark_udm_t *udm)
  47 {
  48         int status;
  49
  50         status = ark_udm_stop(udm, 1);
  51         if (status != 0) {
  52                 PMD_DEBUG_LOG(INFO, "%s  stop failed  doing forced reset\n",
  53                               __func__);
  54                 udm->cfg.command = 4;
  55                 usleep(10);
  56                 udm->cfg.command = 3;
  57                 status = ark_udm_stop(udm, 0);
  58                 PMD_DEBUG_LOG(INFO, "%s  stop status %d post failure"
  59                               " and forced reset\n",
  60                               __func__, status);
  61         } else {
  62                 udm->cfg.command = 3;
  63         }
  64
  65         return status;
  66 }
  67
  68 void
  69 ark_udm_start(struct ark_udm_t *udm)
  70 {
  71         udm->cfg.command = 1;
  72 }
  73
  74 void
  75 ark_udm_stats_reset(struct ark_udm_t *udm)
  76 {
  77         udm->pcibp.pci_clear = 1;
  78         udm->tlp_ps.tlp_clear = 1;
  79 }
  80
  81 void
  82 ark_udm_configure(struct ark_udm_t *udm,
  83                   uint32_t headroom,
  84                   uint32_t dataroom,
  85                   uint32_t write_interval_ns)
  86 {
  87         /* headroom and data room are in DWords in the UDM */
  88         udm->cfg.dataroom = dataroom / 4;
  89         udm->cfg.headroom = headroom / 4;
  90
  91         /* 4 NS period ns */
  92         udm->rt_cfg.write_interval = write_interval_ns / 4;
  93 }
  94
  95 void
  96 ark_udm_write_addr(struct ark_udm_t *udm, rte_iova_t addr)
  97 {
  98         udm->rt_cfg.hw_prod_addr = addr;
  99 }
 100
 101 int
 102 ark_udm_is_flushed(struct ark_udm_t *udm)
 103 {
 104         return (udm->cfg.stop_flushed & 0x01) != 0;
 105 }
 106
 107 uint64_t
 108 ark_udm_dropped(struct ark_udm_t *udm)
 109 {
 110         return udm->qstats.q_pkt_drop;
 111 }
 112
 113 uint64_t
 114 ark_udm_bytes(struct ark_udm_t *udm)
 115 {
 116         return udm->qstats.q_byte_count;
 117 }
 118
 119 uint64_t
 120 ark_udm_packets(struct ark_udm_t *udm)
 121 {
 122         return udm->qstats.q_ff_packet_count;
 123 }
 124
 125 void
 126 ark_udm_dump_stats(struct ark_udm_t *udm, const char *msg)
 127 {
 128         PMD_STATS_LOG(INFO, "UDM Stats: %s"
 129                       ARK_SU64 ARK_SU64 ARK_SU64 ARK_SU64 ARK_SU64 "\n",
 130                       msg,
 131                       "Pkts Received", udm->stats.rx_packet_count,
 132                       "Pkts Finalized", udm->stats.rx_sent_packets,
 133                       "Pkts Dropped", udm->tlp.pkt_drop,
 134                       "Bytes Count", udm->stats.rx_byte_count,
 135                       "MBuf Count", udm->stats.rx_mbuf_count);
 136 }
 137
 138 void
 139 ark_udm_dump_queue_stats(struct ark_udm_t *udm, const char *msg, uint16_t qid)
 140 {
 141         PMD_STATS_LOG(INFO, "UDM Queue %3u Stats: %s"
 142                       ARK_SU64 ARK_SU64
 143                       ARK_SU64 ARK_SU64
 144                       ARK_SU64 "\n",
 145                       qid, msg,
 146                       "Pkts Received", udm->qstats.q_packet_count,
 147                       "Pkts Finalized", udm->qstats.q_ff_packet_count,
 148                       "Pkts Dropped", udm->qstats.q_pkt_drop,
 149                       "Bytes Count", udm->qstats.q_byte_count,
 150                       "MBuf Count", udm->qstats.q_mbuf_count);
 151 }
 152
 153 void
 154 ark_udm_dump(struct ark_udm_t *udm, const char *msg)
 155 {
 156         PMD_DEBUG_LOG(DEBUG, "UDM Dump: %s Stopped: %d\n", msg,
 157                       udm->cfg.stop_flushed);
 158 }
 159
 160 void
 161 ark_udm_dump_setup(struct ark_udm_t *udm, uint16_t q_id)
 162 {
 163         PMD_DEBUG_LOG(DEBUG, "UDM Setup Q: %u"
 164                       ARK_SU64X ARK_SU32 "\n",
 165                       q_id,
 166                       "hw_prod_addr", udm->rt_cfg.hw_prod_addr,
 167                       "prod_idx", udm->rt_cfg.prod_idx);
 168 }
 169
 170 void
 171 ark_udm_dump_perf(struct ark_udm_t *udm, const char *msg)
 172 {
 173         struct ark_udm_pcibp_t *bp = &udm->pcibp;
 174
 175         PMD_STATS_LOG(INFO, "UDM Performance %s"
 176                       ARK_SU32 ARK_SU32 ARK_SU32 ARK_SU32 ARK_SU32 ARK_SU32
 177                       "\n",
 178                       msg,
 179                       "PCI Empty", bp->pci_empty,
 180                       "PCI Q1", bp->pci_q1,
 181                       "PCI Q2", bp->pci_q2,
 182                       "PCI Q3", bp->pci_q3,
 183                       "PCI Q4", bp->pci_q4,
 184                       "PCI Full", bp->pci_full);
 185 }
 186
 187 void
 188 ark_udm_queue_stats_reset(struct ark_udm_t *udm)
 189 {
 190         udm->qstats.q_byte_count = 1;
 191 }
 192
 193 void
 194 ark_udm_queue_enable(struct ark_udm_t *udm, int enable)
 195 {
 196         udm->qstats.q_enable = enable ? 1 : 0;
 197 }