drivers/net/cxgbe/cxgbevf_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Chelsio Communications.
   3  * All rights reserved.
   4  */
   5
   6 #include <rte_ethdev_driver.h>
   7 #include <rte_ethdev_pci.h>
   8
   9 #include "cxgbe.h"
  10 #include "cxgbe_pfvf.h"
  11
  12 /*
  13  * Macros needed to support the PCI Device ID Table ...
  14  */
  15 #define CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN \
  16         static const struct rte_pci_id cxgb4vf_pci_tbl[] = {
  17 #define CH_PCI_DEVICE_ID_FUNCTION 0x8
  18
  19 #define PCI_VENDOR_ID_CHELSIO 0x1425
  20
  21 #define CH_PCI_ID_TABLE_ENTRY(devid) \
  22                 { RTE_PCI_DEVICE(PCI_VENDOR_ID_CHELSIO, (devid)) }
  23
  24 #define CH_PCI_DEVICE_ID_TABLE_DEFINE_END \
  25                 { .vendor_id = 0, } \
  26         }
  27
  28 /*
  29  *... and the PCI ID Table itself ...
  30  */
  31 #include "base/t4_pci_id_tbl.h"
  32
  33 /*
  34  * Get port statistics.
  35  */
  36 static int cxgbevf_dev_stats_get(struct rte_eth_dev *eth_dev,
  37                                  struct rte_eth_stats *eth_stats)
  38 {
  39         struct port_info *pi = eth_dev->data->dev_private;
  40         struct adapter *adapter = pi->adapter;
  41         struct sge *s = &adapter->sge;
  42         struct port_stats ps;
  43         unsigned int i;
  44
  45         cxgbevf_stats_get(pi, &ps);
  46
  47         /* RX Stats */
  48         eth_stats->ierrors  = ps.rx_len_err;
  49
  50         /* TX Stats */
  51         eth_stats->opackets = ps.tx_bcast_frames + ps.tx_mcast_frames +
  52                               ps.tx_ucast_frames;
  53         eth_stats->obytes = ps.tx_octets;
  54         eth_stats->oerrors  = ps.tx_drop;
  55
  56         for (i = 0; i < pi->n_rx_qsets; i++) {
  57                 struct sge_eth_rxq *rxq =
  58                         &s->ethrxq[pi->first_qset + i];
  59
  60                 eth_stats->q_ipackets[i] = rxq->stats.pkts;
  61                 eth_stats->q_ibytes[i] = rxq->stats.rx_bytes;
  62                 eth_stats->ipackets += eth_stats->q_ipackets[i];
  63                 eth_stats->ibytes += eth_stats->q_ibytes[i];
  64         }
  65
  66         for (i = 0; i < pi->n_tx_qsets; i++) {
  67                 struct sge_eth_txq *txq =
  68                         &s->ethtxq[pi->first_qset + i];
  69
  70                 eth_stats->q_opackets[i] = txq->stats.pkts;
  71                 eth_stats->q_obytes[i] = txq->stats.tx_bytes;
  72         }
  73         return 0;
  74 }
  75
  76 static const struct eth_dev_ops cxgbevf_eth_dev_ops = {
  77         .dev_start              = cxgbe_dev_start,
  78         .dev_stop               = cxgbe_dev_stop,
  79         .dev_close              = cxgbe_dev_close,
  80         .promiscuous_enable     = cxgbe_dev_promiscuous_enable,
  81         .promiscuous_disable    = cxgbe_dev_promiscuous_disable,
  82         .allmulticast_enable    = cxgbe_dev_allmulticast_enable,
  83         .allmulticast_disable   = cxgbe_dev_allmulticast_disable,
  84         .dev_configure          = cxgbe_dev_configure,
  85         .dev_infos_get          = cxgbe_dev_info_get,
  86         .dev_supported_ptypes_get = cxgbe_dev_supported_ptypes_get,
  87         .link_update            = cxgbe_dev_link_update,
  88         .dev_set_link_up        = cxgbe_dev_set_link_up,
  89         .dev_set_link_down      = cxgbe_dev_set_link_down,
  90         .mtu_set                = cxgbe_dev_mtu_set,
  91         .tx_queue_setup         = cxgbe_dev_tx_queue_setup,
  92         .tx_queue_start         = cxgbe_dev_tx_queue_start,
  93         .tx_queue_stop          = cxgbe_dev_tx_queue_stop,
  94         .tx_queue_release       = cxgbe_dev_tx_queue_release,
  95         .rx_queue_setup         = cxgbe_dev_rx_queue_setup,
  96         .rx_queue_start         = cxgbe_dev_rx_queue_start,
  97         .rx_queue_stop          = cxgbe_dev_rx_queue_stop,
  98         .rx_queue_release       = cxgbe_dev_rx_queue_release,
  99         .stats_get              = cxgbevf_dev_stats_get,
 100         .mac_addr_set           = cxgbe_mac_addr_set,
 101 };
 102
 103 /*
 104  * Initialize driver
 105  * It returns 0 on success.
 106  */
 107 static int eth_cxgbevf_dev_init(struct rte_eth_dev *eth_dev)
 108 {
 109         struct port_info *pi = eth_dev->data->dev_private;
 110         struct rte_pci_device *pci_dev;
 111         char name[RTE_ETH_NAME_MAX_LEN];
 112         struct adapter *adapter = NULL;
 113         int err = 0;
 114
 115         CXGBE_FUNC_TRACE();
 116
 117         eth_dev->dev_ops = &cxgbevf_eth_dev_ops;
 118         eth_dev->rx_pkt_burst = &cxgbe_recv_pkts;
 119         eth_dev->tx_pkt_burst = &cxgbe_xmit_pkts;
 120         pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
 121
 122         /* for secondary processes, we attach to ethdevs allocated by primary
 123          * and do minimal initialization.
 124          */
 125         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
 126                 int i;
 127
 128                 for (i = 1; i < MAX_NPORTS; i++) {
 129                         struct rte_eth_dev *rest_eth_dev;
 130                         char namei[RTE_ETH_NAME_MAX_LEN];
 131
 132                         snprintf(namei, sizeof(namei), "%s_%d",
 133                                  pci_dev->device.name, i);
 134                         rest_eth_dev = rte_eth_dev_attach_secondary(namei);
 135                         if (rest_eth_dev) {
 136                                 rest_eth_dev->device = &pci_dev->device;
 137                                 rest_eth_dev->dev_ops =
 138                                         eth_dev->dev_ops;
 139                                 rest_eth_dev->rx_pkt_burst =
 140                                         eth_dev->rx_pkt_burst;
 141                                 rest_eth_dev->tx_pkt_burst =
 142                                         eth_dev->tx_pkt_burst;
 143                                 rte_eth_dev_probing_finish(rest_eth_dev);
 144                         }
 145                 }
 146                 return 0;
 147         }
 148
 149         snprintf(name, sizeof(name), "cxgbevfadapter%d",
 150                  eth_dev->data->port_id);
 151         adapter = rte_zmalloc(name, sizeof(*adapter), 0);
 152         if (!adapter)
 153                 return -1;
 154
 155         adapter->use_unpacked_mode = 1;
 156         adapter->regs = (void *)pci_dev->mem_resource[0].addr;
 157         if (!adapter->regs) {
 158                 dev_err(adapter, "%s: cannot map device registers\n", __func__);
 159                 err = -ENOMEM;
 160                 goto out_free_adapter;
 161         }
 162         adapter->pdev = pci_dev;
 163         adapter->eth_dev = eth_dev;
 164         pi->adapter = adapter;
 165         err = cxgbevf_probe(adapter);
 166         if (err) {
 167                 dev_err(adapter, "%s: cxgbevf probe failed with err %d\n",
 168                         __func__, err);
 169                 goto out_free_adapter;
 170         }
 171
 172         return 0;
 173
 174 out_free_adapter:
 175         rte_free(adapter);
 176         return err;
 177 }
 178
 179 static int eth_cxgbevf_dev_uninit(struct rte_eth_dev *eth_dev)
 180 {
 181         struct port_info *pi = eth_dev->data->dev_private;
 182         struct adapter *adap = pi->adapter;
 183
 184         /* Free up other ports and all resources */
 185         cxgbe_close(adap);
 186         return 0;
 187 }
 188
 189 static int eth_cxgbevf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 190                                  struct rte_pci_device *pci_dev)
 191 {
 192         return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct port_info),
 193                                              eth_cxgbevf_dev_init);
 194 }
 195
 196 static int eth_cxgbevf_pci_remove(struct rte_pci_device *pci_dev)
 197 {
 198         return rte_eth_dev_pci_generic_remove(pci_dev, eth_cxgbevf_dev_uninit);
 199 }
 200
 201 static struct rte_pci_driver rte_cxgbevf_pmd = {
 202         .id_table = cxgb4vf_pci_tbl,
 203         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 204         .probe = eth_cxgbevf_pci_probe,
 205         .remove = eth_cxgbevf_pci_remove,
 206 };
 207
 208 RTE_PMD_REGISTER_PCI(net_cxgbevf, rte_cxgbevf_pmd);
 209 RTE_PMD_REGISTER_PCI_TABLE(net_cxgbevf, cxgb4vf_pci_tbl);
 210 RTE_PMD_REGISTER_KMOD_DEP(net_cxgbevf, "* igb_uio | vfio-pci");