drivers/net/thunderx/nicvf_ethdev.c

   1 /*
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (C) Cavium networks Ltd. 2016.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Cavium networks nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <assert.h>
  34 #include <stdio.h>
  35 #include <stdbool.h>
  36 #include <errno.h>
  37 #include <stdint.h>
  38 #include <string.h>
  39 #include <unistd.h>
  40 #include <stdarg.h>
  41 #include <inttypes.h>
  42 #include <netinet/in.h>
  43 #include <sys/queue.h>
  44 #include <sys/timerfd.h>
  45
  46 #include <rte_alarm.h>
  47 #include <rte_atomic.h>
  48 #include <rte_branch_prediction.h>
  49 #include <rte_byteorder.h>
  50 #include <rte_common.h>
  51 #include <rte_cycles.h>
  52 #include <rte_debug.h>
  53 #include <rte_dev.h>
  54 #include <rte_eal.h>
  55 #include <rte_ether.h>
  56 #include <rte_ethdev.h>
  57 #include <rte_interrupts.h>
  58 #include <rte_log.h>
  59 #include <rte_memory.h>
  60 #include <rte_memzone.h>
  61 #include <rte_malloc.h>
  62 #include <rte_random.h>
  63 #include <rte_pci.h>
  64 #include <rte_tailq.h>
  65
  66 #include "base/nicvf_plat.h"
  67
  68 #include "nicvf_ethdev.h"
  69
  70 #include "nicvf_logs.h"
  71
  72 static void
  73 nicvf_interrupt(void *arg)
  74 {
  75         struct nicvf *nic = arg;
  76
  77         nicvf_reg_poll_interrupts(nic);
  78
  79         rte_eal_alarm_set(NICVF_INTR_POLL_INTERVAL_MS * 1000,
  80                                 nicvf_interrupt, nic);
  81 }
  82
  83 static int
  84 nicvf_periodic_alarm_start(struct nicvf *nic)
  85 {
  86         return rte_eal_alarm_set(NICVF_INTR_POLL_INTERVAL_MS * 1000,
  87                                         nicvf_interrupt, nic);
  88 }
  89
  90 static int
  91 nicvf_periodic_alarm_stop(struct nicvf *nic)
  92 {
  93         return rte_eal_alarm_cancel(nicvf_interrupt, nic);
  94 }
  95
  96 /* Initialize and register driver with DPDK Application */
  97 static const struct eth_dev_ops nicvf_eth_dev_ops = {
  98 };
  99
 100 static int
 101 nicvf_eth_dev_init(struct rte_eth_dev *eth_dev)
 102 {
 103         int ret;
 104         struct rte_pci_device *pci_dev;
 105         struct nicvf *nic = nicvf_pmd_priv(eth_dev);
 106
 107         PMD_INIT_FUNC_TRACE();
 108
 109         eth_dev->dev_ops = &nicvf_eth_dev_ops;
 110
 111         pci_dev = eth_dev->pci_dev;
 112         rte_eth_copy_pci_info(eth_dev, pci_dev);
 113
 114         nic->device_id = pci_dev->id.device_id;
 115         nic->vendor_id = pci_dev->id.vendor_id;
 116         nic->subsystem_device_id = pci_dev->id.subsystem_device_id;
 117         nic->subsystem_vendor_id = pci_dev->id.subsystem_vendor_id;
 118         nic->eth_dev = eth_dev;
 119
 120         PMD_INIT_LOG(DEBUG, "nicvf: device (%x:%x) %u:%u:%u:%u",
 121                         pci_dev->id.vendor_id, pci_dev->id.device_id,
 122                         pci_dev->addr.domain, pci_dev->addr.bus,
 123                         pci_dev->addr.devid, pci_dev->addr.function);
 124
 125         nic->reg_base = (uintptr_t)pci_dev->mem_resource[0].addr;
 126         if (!nic->reg_base) {
 127                 PMD_INIT_LOG(ERR, "Failed to map BAR0");
 128                 ret = -ENODEV;
 129                 goto fail;
 130         }
 131
 132         nicvf_disable_all_interrupts(nic);
 133
 134         ret = nicvf_periodic_alarm_start(nic);
 135         if (ret) {
 136                 PMD_INIT_LOG(ERR, "Failed to start period alarm");
 137                 goto fail;
 138         }
 139
 140         ret = nicvf_mbox_check_pf_ready(nic);
 141         if (ret) {
 142                 PMD_INIT_LOG(ERR, "Failed to get ready message from PF");
 143                 goto alarm_fail;
 144         } else {
 145                 PMD_INIT_LOG(INFO,
 146                         "node=%d vf=%d mode=%s sqs=%s loopback_supported=%s",
 147                         nic->node, nic->vf_id,
 148                         nic->tns_mode == NIC_TNS_MODE ? "tns" : "tns-bypass",
 149                         nic->sqs_mode ? "true" : "false",
 150                         nic->loopback_supported ? "true" : "false"
 151                         );
 152         }
 153
 154         if (nic->sqs_mode) {
 155                 PMD_INIT_LOG(INFO, "Unsupported SQS VF detected, Detaching...");
 156                 /* Detach port by returning Positive error number */
 157                 ret = ENOTSUP;
 158                 goto alarm_fail;
 159         }
 160
 161         eth_dev->data->mac_addrs = rte_zmalloc("mac_addr", ETHER_ADDR_LEN, 0);
 162         if (eth_dev->data->mac_addrs == NULL) {
 163                 PMD_INIT_LOG(ERR, "Failed to allocate memory for mac addr");
 164                 ret = -ENOMEM;
 165                 goto alarm_fail;
 166         }
 167         if (is_zero_ether_addr((struct ether_addr *)nic->mac_addr))
 168                 eth_random_addr(&nic->mac_addr[0]);
 169
 170         ether_addr_copy((struct ether_addr *)nic->mac_addr,
 171                         &eth_dev->data->mac_addrs[0]);
 172
 173         ret = nicvf_mbox_set_mac_addr(nic, nic->mac_addr);
 174         if (ret) {
 175                 PMD_INIT_LOG(ERR, "Failed to set mac addr");
 176                 goto malloc_fail;
 177         }
 178
 179         ret = nicvf_base_init(nic);
 180         if (ret) {
 181                 PMD_INIT_LOG(ERR, "Failed to execute nicvf_base_init");
 182                 goto malloc_fail;
 183         }
 184
 185         ret = nicvf_mbox_get_rss_size(nic);
 186         if (ret) {
 187                 PMD_INIT_LOG(ERR, "Failed to get rss table size");
 188                 goto malloc_fail;
 189         }
 190
 191         PMD_INIT_LOG(INFO, "Port %d (%x:%x) mac=%02x:%02x:%02x:%02x:%02x:%02x",
 192                 eth_dev->data->port_id, nic->vendor_id, nic->device_id,
 193                 nic->mac_addr[0], nic->mac_addr[1], nic->mac_addr[2],
 194                 nic->mac_addr[3], nic->mac_addr[4], nic->mac_addr[5]);
 195
 196         return 0;
 197
 198 malloc_fail:
 199         rte_free(eth_dev->data->mac_addrs);
 200 alarm_fail:
 201         nicvf_periodic_alarm_stop(nic);
 202 fail:
 203         return ret;
 204 }
 205
 206 static const struct rte_pci_id pci_id_nicvf_map[] = {
 207         {
 208                 .class_id = RTE_CLASS_ANY_ID,
 209                 .vendor_id = PCI_VENDOR_ID_CAVIUM,
 210                 .device_id = PCI_DEVICE_ID_THUNDERX_PASS1_NICVF,
 211                 .subsystem_vendor_id = PCI_VENDOR_ID_CAVIUM,
 212                 .subsystem_device_id = PCI_SUB_DEVICE_ID_THUNDERX_PASS1_NICVF,
 213         },
 214         {
 215                 .class_id = RTE_CLASS_ANY_ID,
 216                 .vendor_id = PCI_VENDOR_ID_CAVIUM,
 217                 .device_id = PCI_DEVICE_ID_THUNDERX_PASS2_NICVF,
 218                 .subsystem_vendor_id = PCI_VENDOR_ID_CAVIUM,
 219                 .subsystem_device_id = PCI_SUB_DEVICE_ID_THUNDERX_PASS2_NICVF,
 220         },
 221         {
 222                 .vendor_id = 0,
 223         },
 224 };
 225
 226 static struct eth_driver rte_nicvf_pmd = {
 227         .pci_drv = {
 228                 .name = "rte_nicvf_pmd",
 229                 .id_table = pci_id_nicvf_map,
 230                 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
 231         },
 232         .eth_dev_init = nicvf_eth_dev_init,
 233         .dev_private_size = sizeof(struct nicvf),
 234 };
 235
 236 static int
 237 rte_nicvf_pmd_init(const char *name __rte_unused, const char *para __rte_unused)
 238 {
 239         PMD_INIT_FUNC_TRACE();
 240         PMD_INIT_LOG(INFO, "librte_pmd_thunderx nicvf version %s",
 241                         THUNDERX_NICVF_PMD_VERSION);
 242
 243         rte_eth_driver_register(&rte_nicvf_pmd);
 244         return 0;
 245 }
 246
 247 static struct rte_driver rte_nicvf_driver = {
 248         .name = "nicvf_driver",
 249         .type = PMD_PDEV,
 250         .init = rte_nicvf_pmd_init,
 251 };
 252
 253 PMD_REGISTER_DRIVER(rte_nicvf_driver);