drivers/net/bnxt/bnxt_ethdev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) Broadcom Limited.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Broadcom Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <inttypes.h>
  35 #include <stdbool.h>
  36
  37 #include <rte_dev.h>
  38 #include <rte_ethdev.h>
  39 #include <rte_malloc.h>
  40 #include <rte_cycles.h>
  41
  42 #include "bnxt.h"
  43 #include "bnxt_hwrm.h"
  44
  45 #define DRV_MODULE_NAME         "bnxt"
  46 static const char bnxt_version[] =
  47         "Broadcom Cumulus driver " DRV_MODULE_NAME "\n";
  48
  49 static struct rte_pci_id bnxt_pci_id_map[] = {
  50 #define RTE_PCI_DEV_ID_DECL_BNXT(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
  51 #include "rte_pci_dev_ids.h"
  52         {.device_id = 0},
  53 };
  54
  55 static void bnxt_dev_close_op(struct rte_eth_dev *eth_dev)
  56 {
  57         struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
  58
  59         rte_free(eth_dev->data->mac_addrs);
  60         bnxt_free_hwrm_resources(bp);
  61 }
  62
  63 /*
  64  * Initialization
  65  */
  66
  67 static struct eth_dev_ops bnxt_dev_ops = {
  68         .dev_close = bnxt_dev_close_op,
  69 };
  70
  71 static bool bnxt_vf_pciid(uint16_t id)
  72 {
  73         if (id == BROADCOM_DEV_ID_57304_VF ||
  74             id == BROADCOM_DEV_ID_57406_VF)
  75                 return true;
  76         return false;
  77 }
  78
  79 static int bnxt_init_board(struct rte_eth_dev *eth_dev)
  80 {
  81         int rc;
  82         struct bnxt *bp = eth_dev->data->dev_private;
  83
  84         /* enable device (incl. PCI PM wakeup), and bus-mastering */
  85         if (!eth_dev->pci_dev->mem_resource[0].addr) {
  86                 RTE_LOG(ERR, PMD,
  87                         "Cannot find PCI device base address, aborting\n");
  88                 rc = -ENODEV;
  89                 goto init_err_disable;
  90         }
  91
  92         bp->eth_dev = eth_dev;
  93         bp->pdev = eth_dev->pci_dev;
  94
  95         bp->bar0 = (void *)eth_dev->pci_dev->mem_resource[0].addr;
  96         if (!bp->bar0) {
  97                 RTE_LOG(ERR, PMD, "Cannot map device registers, aborting\n");
  98                 rc = -ENOMEM;
  99                 goto init_err_release;
 100         }
 101         return 0;
 102
 103 init_err_release:
 104         if (bp->bar0)
 105                 bp->bar0 = NULL;
 106
 107 init_err_disable:
 108
 109         return rc;
 110 }
 111
 112 static int
 113 bnxt_dev_init(struct rte_eth_dev *eth_dev)
 114 {
 115         static int version_printed;
 116         struct bnxt *bp;
 117         int rc;
 118
 119         if (version_printed++ == 0)
 120                 RTE_LOG(INFO, PMD, "%s", bnxt_version);
 121
 122         if (eth_dev->pci_dev->addr.function >= 2 &&
 123                         eth_dev->pci_dev->addr.function < 4) {
 124                 RTE_LOG(ERR, PMD, "Function not enabled %x:\n",
 125                         eth_dev->pci_dev->addr.function);
 126                 rc = -ENOMEM;
 127                 goto error;
 128         }
 129
 130         rte_eth_copy_pci_info(eth_dev, eth_dev->pci_dev);
 131         bp = eth_dev->data->dev_private;
 132
 133         if (bnxt_vf_pciid(eth_dev->pci_dev->id.device_id))
 134                 bp->flags |= BNXT_FLAG_VF;
 135
 136         rc = bnxt_init_board(eth_dev);
 137         if (rc) {
 138                 RTE_LOG(ERR, PMD,
 139                         "Board initialization failed rc: %x\n", rc);
 140                 goto error;
 141         }
 142         eth_dev->dev_ops = &bnxt_dev_ops;
 143         /* eth_dev->rx_pkt_burst = &bnxt_recv_pkts; */
 144         /* eth_dev->tx_pkt_burst = &bnxt_xmit_pkts; */
 145
 146         rc = bnxt_alloc_hwrm_resources(bp);
 147         if (rc) {
 148                 RTE_LOG(ERR, PMD,
 149                         "hwrm resource allocation failure rc: %x\n", rc);
 150                 goto error_free;
 151         }
 152         rc = bnxt_hwrm_ver_get(bp);
 153         if (rc)
 154                 goto error_free;
 155         bnxt_hwrm_queue_qportcfg(bp);
 156
 157         /* Get the MAX capabilities for this function */
 158         rc = bnxt_hwrm_func_qcaps(bp);
 159         if (rc) {
 160                 RTE_LOG(ERR, PMD, "hwrm query capability failure rc: %x\n", rc);
 161                 goto error_free;
 162         }
 163         eth_dev->data->mac_addrs = rte_zmalloc("bnxt_mac_addr_tbl",
 164                                         ETHER_ADDR_LEN * MAX_NUM_MAC_ADDR, 0);
 165         if (eth_dev->data->mac_addrs == NULL) {
 166                 RTE_LOG(ERR, PMD,
 167                         "Failed to alloc %u bytes needed to store MAC addr tbl",
 168                         ETHER_ADDR_LEN * MAX_NUM_MAC_ADDR);
 169                 rc = -ENOMEM;
 170                 goto error_free;
 171         }
 172         /* Copy the permanent MAC from the qcap response address now. */
 173         if (BNXT_PF(bp))
 174                 memcpy(bp->mac_addr, bp->pf.mac_addr, sizeof(bp->mac_addr));
 175         else
 176                 memcpy(bp->mac_addr, bp->vf.mac_addr, sizeof(bp->mac_addr));
 177         memcpy(&eth_dev->data->mac_addrs[0], bp->mac_addr, ETHER_ADDR_LEN);
 178
 179         return -EPERM;
 180
 181 error_free:
 182         bnxt_dev_close_op(eth_dev);
 183 error:
 184         return rc;
 185 }
 186
 187 static int
 188 bnxt_dev_uninit(struct rte_eth_dev *eth_dev __rte_unused) {
 189         return 0;
 190 }
 191
 192 static struct eth_driver bnxt_rte_pmd = {
 193         .pci_drv = {
 194                     .name = "rte_" DRV_MODULE_NAME "_pmd",
 195                     .id_table = bnxt_pci_id_map,
 196                     .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 197                     },
 198         .eth_dev_init = bnxt_dev_init,
 199         .eth_dev_uninit = bnxt_dev_uninit,
 200         .dev_private_size = sizeof(struct bnxt),
 201 };
 202
 203 static int bnxt_rte_pmd_init(const char *name, const char *params __rte_unused)
 204 {
 205         RTE_LOG(INFO, PMD, "bnxt_rte_pmd_init() called for %s\n", name);
 206         rte_eth_driver_register(&bnxt_rte_pmd);
 207         return 0;
 208 }
 209
 210 static struct rte_driver bnxt_pmd_drv = {
 211         .name = "eth_bnxt",
 212         .type = PMD_PDEV,
 213         .init = bnxt_rte_pmd_init,
 214 };
 215
 216 PMD_REGISTER_DRIVER(bnxt_pmd_drv);