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 "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 = (struct port_info *)(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->oerrors = ps.tx_drop; 54 55 for (i = 0; i < pi->n_rx_qsets; i++) { 56 struct sge_eth_rxq *rxq = 57 &s->ethrxq[pi->first_qset + i]; 58 59 eth_stats->q_ipackets[i] = rxq->stats.pkts; 60 eth_stats->q_ibytes[i] = rxq->stats.rx_bytes; 61 eth_stats->ipackets += eth_stats->q_ipackets[i]; 62 eth_stats->ibytes += eth_stats->q_ibytes[i]; 63 } 64 65 for (i = 0; i < pi->n_tx_qsets; i++) { 66 struct sge_eth_txq *txq = 67 &s->ethtxq[pi->first_qset + i]; 68 69 eth_stats->q_opackets[i] = txq->stats.pkts; 70 eth_stats->q_obytes[i] = txq->stats.tx_bytes; 71 eth_stats->q_errors[i] = txq->stats.mapping_err; 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 .mtu_set = cxgbe_dev_mtu_set, 89 .tx_queue_setup = cxgbe_dev_tx_queue_setup, 90 .tx_queue_start = cxgbe_dev_tx_queue_start, 91 .tx_queue_stop = cxgbe_dev_tx_queue_stop, 92 .tx_queue_release = cxgbe_dev_tx_queue_release, 93 .rx_queue_setup = cxgbe_dev_rx_queue_setup, 94 .rx_queue_start = cxgbe_dev_rx_queue_start, 95 .rx_queue_stop = cxgbe_dev_rx_queue_stop, 96 .rx_queue_release = cxgbe_dev_rx_queue_release, 97 .stats_get = cxgbevf_dev_stats_get, 98 }; 99 100 /* 101 * Initialize driver 102 * It returns 0 on success. 103 */ 104 static int eth_cxgbevf_dev_init(struct rte_eth_dev *eth_dev) 105 { 106 struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private); 107 struct rte_pci_device *pci_dev; 108 char name[RTE_ETH_NAME_MAX_LEN]; 109 struct adapter *adapter = NULL; 110 int err = 0; 111 112 CXGBE_FUNC_TRACE(); 113 114 eth_dev->dev_ops = &cxgbevf_eth_dev_ops; 115 eth_dev->rx_pkt_burst = &cxgbe_recv_pkts; 116 eth_dev->tx_pkt_burst = &cxgbe_xmit_pkts; 117 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev); 118 119 /* for secondary processes, we attach to ethdevs allocated by primary 120 * and do minimal initialization. 121 */ 122 if (rte_eal_process_type() != RTE_PROC_PRIMARY) { 123 int i; 124 125 for (i = 1; i < MAX_NPORTS; i++) { 126 struct rte_eth_dev *rest_eth_dev; 127 char namei[RTE_ETH_NAME_MAX_LEN]; 128 129 snprintf(namei, sizeof(namei), "%s_%d", 130 pci_dev->device.name, i); 131 rest_eth_dev = rte_eth_dev_attach_secondary(namei); 132 if (rest_eth_dev) { 133 rest_eth_dev->device = &pci_dev->device; 134 rest_eth_dev->dev_ops = 135 eth_dev->dev_ops; 136 rest_eth_dev->rx_pkt_burst = 137 eth_dev->rx_pkt_burst; 138 rest_eth_dev->tx_pkt_burst = 139 eth_dev->tx_pkt_burst; 140 } 141 } 142 return 0; 143 } 144 145 snprintf(name, sizeof(name), "cxgbevfadapter%d", 146 eth_dev->data->port_id); 147 adapter = rte_zmalloc(name, sizeof(*adapter), 0); 148 if (!adapter) 149 return -1; 150 151 adapter->use_unpacked_mode = 1; 152 adapter->regs = (void *)pci_dev->mem_resource[0].addr; 153 if (!adapter->regs) { 154 dev_err(adapter, "%s: cannot map device registers\n", __func__); 155 err = -ENOMEM; 156 goto out_free_adapter; 157 } 158 adapter->pdev = pci_dev; 159 adapter->eth_dev = eth_dev; 160 pi->adapter = adapter; 161 err = cxgbevf_probe(adapter); 162 if (err) { 163 dev_err(adapter, "%s: cxgbevf probe failed with err %d\n", 164 __func__, err); 165 goto out_free_adapter; 166 } 167 168 return 0; 169 170 out_free_adapter: 171 rte_free(adapter); 172 return err; 173 } 174 175 static int eth_cxgbevf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, 176 struct rte_pci_device *pci_dev) 177 { 178 return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct port_info), 179 eth_cxgbevf_dev_init); 180 } 181 182 static int eth_cxgbevf_pci_remove(struct rte_pci_device *pci_dev) 183 { 184 return rte_eth_dev_pci_generic_remove(pci_dev, NULL); 185 } 186 187 static struct rte_pci_driver rte_cxgbevf_pmd = { 188 .id_table = cxgb4vf_pci_tbl, 189 .drv_flags = RTE_PCI_DRV_NEED_MAPPING, 190 .probe = eth_cxgbevf_pci_probe, 191 .remove = eth_cxgbevf_pci_remove, 192 }; 193 194 RTE_PMD_REGISTER_PCI(net_cxgbevf, rte_cxgbevf_pmd); 195 RTE_PMD_REGISTER_PCI_TABLE(net_cxgbevf, cxgb4vf_pci_tbl); 196 RTE_PMD_REGISTER_KMOD_DEP(net_cxgbevf, "* igb_uio | vfio-pci"); 197