drivers/net/cnxk/cn10k_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2021 Marvell.
   3  */
   4 #include "cn10k_ethdev.h"
   5
   6 static int
   7 cn10k_nix_rx_queue_setup(struct rte_eth_dev *eth_dev, uint16_t qid,
   8                          uint16_t nb_desc, unsigned int socket,
   9                          const struct rte_eth_rxconf *rx_conf,
  10                          struct rte_mempool *mp)
  11 {
  12         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
  13         struct cn10k_eth_rxq *rxq;
  14         struct roc_nix_rq *rq;
  15         struct roc_nix_cq *cq;
  16         int rc;
  17
  18         RTE_SET_USED(socket);
  19
  20         /* CQ Errata needs min 4K ring */
  21         if (dev->cq_min_4k && nb_desc < 4096)
  22                 nb_desc = 4096;
  23
  24         /* Common Rx queue setup */
  25         rc = cnxk_nix_rx_queue_setup(eth_dev, qid, nb_desc,
  26                                      sizeof(struct cn10k_eth_rxq), rx_conf, mp);
  27         if (rc)
  28                 return rc;
  29
  30         rq = &dev->rqs[qid];
  31         cq = &dev->cqs[qid];
  32
  33         /* Update fast path queue */
  34         rxq = eth_dev->data->rx_queues[qid];
  35         rxq->rq = qid;
  36         rxq->desc = (uintptr_t)cq->desc_base;
  37         rxq->cq_door = cq->door;
  38         rxq->cq_status = cq->status;
  39         rxq->wdata = cq->wdata;
  40         rxq->head = cq->head;
  41         rxq->qmask = cq->qmask;
  42
  43         /* Data offset from data to start of mbuf is first_skip */
  44         rxq->data_off = rq->first_skip;
  45         rxq->mbuf_initializer = cnxk_nix_rxq_mbuf_setup(dev);
  46         return 0;
  47 }
  48
  49 static int
  50 cn10k_nix_configure(struct rte_eth_dev *eth_dev)
  51 {
  52         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
  53         int rc;
  54
  55         /* Common nix configure */
  56         rc = cnxk_nix_configure(eth_dev);
  57         if (rc)
  58                 return rc;
  59
  60         plt_nix_dbg("Configured port%d platform specific rx_offload_flags=%x"
  61                     " tx_offload_flags=0x%x",
  62                     eth_dev->data->port_id, dev->rx_offload_flags,
  63                     dev->tx_offload_flags);
  64         return 0;
  65 }
  66
  67 /* Update platform specific eth dev ops */
  68 static void
  69 nix_eth_dev_ops_override(void)
  70 {
  71         static int init_once;
  72
  73         if (init_once)
  74                 return;
  75         init_once = 1;
  76
  77         /* Update platform specific ops */
  78         cnxk_eth_dev_ops.dev_configure = cn10k_nix_configure;
  79         cnxk_eth_dev_ops.rx_queue_setup = cn10k_nix_rx_queue_setup;
  80 }
  81
  82 static int
  83 cn10k_nix_remove(struct rte_pci_device *pci_dev)
  84 {
  85         return cnxk_nix_remove(pci_dev);
  86 }
  87
  88 static int
  89 cn10k_nix_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
  90 {
  91         struct rte_eth_dev *eth_dev;
  92         int rc;
  93
  94         if (RTE_CACHE_LINE_SIZE != 64) {
  95                 plt_err("Driver not compiled for CN10K");
  96                 return -EFAULT;
  97         }
  98
  99         rc = roc_plt_init();
 100         if (rc) {
 101                 plt_err("Failed to initialize platform model, rc=%d", rc);
 102                 return rc;
 103         }
 104
 105         nix_eth_dev_ops_override();
 106
 107         /* Common probe */
 108         rc = cnxk_nix_probe(pci_drv, pci_dev);
 109         if (rc)
 110                 return rc;
 111
 112         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
 113                 eth_dev = rte_eth_dev_allocated(pci_dev->device.name);
 114                 if (!eth_dev)
 115                         return -ENOENT;
 116         }
 117         return 0;
 118 }
 119
 120 static const struct rte_pci_id cn10k_pci_nix_map[] = {
 121         CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CN10KA, PCI_DEVID_CNXK_RVU_PF),
 122         CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CN10KAS, PCI_DEVID_CNXK_RVU_PF),
 123         CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CN10KA, PCI_DEVID_CNXK_RVU_VF),
 124         CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CN10KAS, PCI_DEVID_CNXK_RVU_VF),
 125         CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CN10KA, PCI_DEVID_CNXK_RVU_AF_VF),
 126         CNXK_PCI_ID(PCI_SUBSYSTEM_DEVID_CN10KAS, PCI_DEVID_CNXK_RVU_AF_VF),
 127         {
 128                 .vendor_id = 0,
 129         },
 130 };
 131
 132 static struct rte_pci_driver cn10k_pci_nix = {
 133         .id_table = cn10k_pci_nix_map,
 134         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_NEED_IOVA_AS_VA |
 135                      RTE_PCI_DRV_INTR_LSC,
 136         .probe = cn10k_nix_probe,
 137         .remove = cn10k_nix_remove,
 138 };
 139
 140 RTE_PMD_REGISTER_PCI(net_cn10k, cn10k_pci_nix);
 141 RTE_PMD_REGISTER_PCI_TABLE(net_cn10k, cn10k_pci_nix_map);
 142 RTE_PMD_REGISTER_KMOD_DEP(net_cn10k, "vfio-pci");