drivers/net/ionic/ionic_ethdev.c

   1 /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
   2  * Copyright(c) 2018-2019 Pensando Systems, Inc. All rights reserved.
   3  */
   4
   5 #include <rte_pci.h>
   6 #include <rte_bus_pci.h>
   7 #include <rte_ethdev.h>
   8 #include <rte_ethdev_driver.h>
   9 #include <rte_malloc.h>
  10
  11 #include "ionic_logs.h"
  12 #include "ionic.h"
  13 #include "ionic_dev.h"
  14 #include "ionic_mac_api.h"
  15
  16 int ionic_logtype;
  17
  18 static const struct rte_pci_id pci_id_ionic_map[] = {
  19         { RTE_PCI_DEVICE(IONIC_PENSANDO_VENDOR_ID, IONIC_DEV_ID_ETH_PF) },
  20         { RTE_PCI_DEVICE(IONIC_PENSANDO_VENDOR_ID, IONIC_DEV_ID_ETH_VF) },
  21         { RTE_PCI_DEVICE(IONIC_PENSANDO_VENDOR_ID, IONIC_DEV_ID_ETH_MGMT) },
  22         { .vendor_id = 0, /* sentinel */ },
  23 };
  24
  25 static int
  26 eth_ionic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
  27                 struct rte_pci_device *pci_dev)
  28 {
  29         struct rte_mem_resource *resource;
  30         struct ionic_adapter *adapter;
  31         struct ionic_hw *hw;
  32         unsigned long i;
  33         int err;
  34
  35         /* Check structs (trigger error at compilation time) */
  36         ionic_struct_size_checks();
  37
  38         /* Multi-process not supported */
  39         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
  40                 err = -EPERM;
  41                 goto err;
  42         }
  43
  44         IONIC_PRINT(DEBUG, "Initializing device %s",
  45                 pci_dev->device.name);
  46
  47         adapter = rte_zmalloc("ionic", sizeof(*adapter), 0);
  48         if (!adapter) {
  49                 IONIC_PRINT(ERR, "OOM");
  50                 err = -ENOMEM;
  51                 goto err;
  52         }
  53
  54         adapter->pci_dev = pci_dev;
  55         hw = &adapter->hw;
  56
  57         hw->device_id = pci_dev->id.device_id;
  58         hw->vendor_id = pci_dev->id.vendor_id;
  59
  60         err = ionic_init_mac(hw);
  61         if (err != 0) {
  62                 IONIC_PRINT(ERR, "Mac init failed: %d", err);
  63                 err = -EIO;
  64                 goto err_free_adapter;
  65         }
  66
  67         adapter->is_mgmt_nic = (pci_dev->id.device_id == IONIC_DEV_ID_ETH_MGMT);
  68
  69         adapter->num_bars = 0;
  70         for (i = 0; i < PCI_MAX_RESOURCE && i < IONIC_BARS_MAX; i++) {
  71                 resource = &pci_dev->mem_resource[i];
  72                 if (resource->phys_addr == 0 || resource->len == 0)
  73                         continue;
  74                 adapter->bars[adapter->num_bars].vaddr = resource->addr;
  75                 adapter->bars[adapter->num_bars].bus_addr = resource->phys_addr;
  76                 adapter->bars[adapter->num_bars].len = resource->len;
  77                 adapter->num_bars++;
  78         }
  79
  80         /* Discover ionic dev resources */
  81
  82         err = ionic_setup(adapter);
  83         if (err) {
  84                 IONIC_PRINT(ERR, "Cannot setup device: %d, aborting", err);
  85                 goto err_free_adapter;
  86         }
  87
  88         err = ionic_identify(adapter);
  89         if (err) {
  90                 IONIC_PRINT(ERR, "Cannot identify device: %d, aborting",
  91                         err);
  92                 goto err_free_adapter;
  93         }
  94
  95         err = ionic_init(adapter);
  96         if (err) {
  97                 IONIC_PRINT(ERR, "Cannot init device: %d, aborting", err);
  98                 goto err_free_adapter;
  99         }
 100
 101         return 0;
 102
 103 err_free_adapter:
 104         rte_free(adapter);
 105 err:
 106         return err;
 107 }
 108
 109 static int
 110 eth_ionic_pci_remove(struct rte_pci_device *pci_dev __rte_unused)
 111 {
 112         return 0;
 113 }
 114
 115 static struct rte_pci_driver rte_ionic_pmd = {
 116         .id_table = pci_id_ionic_map,
 117         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
 118         .probe = eth_ionic_pci_probe,
 119         .remove = eth_ionic_pci_remove,
 120 };
 121
 122 RTE_PMD_REGISTER_PCI(net_ionic, rte_ionic_pmd);
 123 RTE_PMD_REGISTER_PCI_TABLE(net_ionic, pci_id_ionic_map);
 124 RTE_PMD_REGISTER_KMOD_DEP(net_ionic, "* igb_uio | uio_pci_generic | vfio-pci");
 125
 126 RTE_INIT(ionic_init_log)
 127 {
 128         ionic_logtype = rte_log_register("pmd.net.ionic");
 129         if (ionic_logtype >= 0)
 130                 rte_log_set_level(ionic_logtype, RTE_LOG_NOTICE);
 131 }