1 /* 2 * BSD LICENSE 3 * 4 * Copyright (C) Cavium networks Ltd. 2016. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * * Neither the name of Cavium networks nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <assert.h> 34 #include <stdio.h> 35 #include <stdbool.h> 36 #include <errno.h> 37 #include <stdint.h> 38 #include <string.h> 39 #include <unistd.h> 40 #include <stdarg.h> 41 #include <inttypes.h> 42 #include <netinet/in.h> 43 #include <sys/queue.h> 44 #include <sys/timerfd.h> 45 46 #include <rte_alarm.h> 47 #include <rte_atomic.h> 48 #include <rte_branch_prediction.h> 49 #include <rte_byteorder.h> 50 #include <rte_common.h> 51 #include <rte_cycles.h> 52 #include <rte_debug.h> 53 #include <rte_dev.h> 54 #include <rte_eal.h> 55 #include <rte_ether.h> 56 #include <rte_ethdev.h> 57 #include <rte_interrupts.h> 58 #include <rte_log.h> 59 #include <rte_memory.h> 60 #include <rte_memzone.h> 61 #include <rte_malloc.h> 62 #include <rte_random.h> 63 #include <rte_pci.h> 64 #include <rte_tailq.h> 65 66 #include "base/nicvf_plat.h" 67 68 #include "nicvf_ethdev.h" 69 70 #include "nicvf_logs.h" 71 72 static void 73 nicvf_interrupt(void *arg) 74 { 75 struct nicvf *nic = arg; 76 77 nicvf_reg_poll_interrupts(nic); 78 79 rte_eal_alarm_set(NICVF_INTR_POLL_INTERVAL_MS * 1000, 80 nicvf_interrupt, nic); 81 } 82 83 static int 84 nicvf_periodic_alarm_start(struct nicvf *nic) 85 { 86 return rte_eal_alarm_set(NICVF_INTR_POLL_INTERVAL_MS * 1000, 87 nicvf_interrupt, nic); 88 } 89 90 static int 91 nicvf_periodic_alarm_stop(struct nicvf *nic) 92 { 93 return rte_eal_alarm_cancel(nicvf_interrupt, nic); 94 } 95 96 /* Initialize and register driver with DPDK Application */ 97 static const struct eth_dev_ops nicvf_eth_dev_ops = { 98 }; 99 100 static int 101 nicvf_eth_dev_init(struct rte_eth_dev *eth_dev) 102 { 103 int ret; 104 struct rte_pci_device *pci_dev; 105 struct nicvf *nic = nicvf_pmd_priv(eth_dev); 106 107 PMD_INIT_FUNC_TRACE(); 108 109 eth_dev->dev_ops = &nicvf_eth_dev_ops; 110 111 pci_dev = eth_dev->pci_dev; 112 rte_eth_copy_pci_info(eth_dev, pci_dev); 113 114 nic->device_id = pci_dev->id.device_id; 115 nic->vendor_id = pci_dev->id.vendor_id; 116 nic->subsystem_device_id = pci_dev->id.subsystem_device_id; 117 nic->subsystem_vendor_id = pci_dev->id.subsystem_vendor_id; 118 nic->eth_dev = eth_dev; 119 120 PMD_INIT_LOG(DEBUG, "nicvf: device (%x:%x) %u:%u:%u:%u", 121 pci_dev->id.vendor_id, pci_dev->id.device_id, 122 pci_dev->addr.domain, pci_dev->addr.bus, 123 pci_dev->addr.devid, pci_dev->addr.function); 124 125 nic->reg_base = (uintptr_t)pci_dev->mem_resource[0].addr; 126 if (!nic->reg_base) { 127 PMD_INIT_LOG(ERR, "Failed to map BAR0"); 128 ret = -ENODEV; 129 goto fail; 130 } 131 132 nicvf_disable_all_interrupts(nic); 133 134 ret = nicvf_periodic_alarm_start(nic); 135 if (ret) { 136 PMD_INIT_LOG(ERR, "Failed to start period alarm"); 137 goto fail; 138 } 139 140 ret = nicvf_mbox_check_pf_ready(nic); 141 if (ret) { 142 PMD_INIT_LOG(ERR, "Failed to get ready message from PF"); 143 goto alarm_fail; 144 } else { 145 PMD_INIT_LOG(INFO, 146 "node=%d vf=%d mode=%s sqs=%s loopback_supported=%s", 147 nic->node, nic->vf_id, 148 nic->tns_mode == NIC_TNS_MODE ? "tns" : "tns-bypass", 149 nic->sqs_mode ? "true" : "false", 150 nic->loopback_supported ? "true" : "false" 151 ); 152 } 153 154 if (nic->sqs_mode) { 155 PMD_INIT_LOG(INFO, "Unsupported SQS VF detected, Detaching..."); 156 /* Detach port by returning Positive error number */ 157 ret = ENOTSUP; 158 goto alarm_fail; 159 } 160 161 eth_dev->data->mac_addrs = rte_zmalloc("mac_addr", ETHER_ADDR_LEN, 0); 162 if (eth_dev->data->mac_addrs == NULL) { 163 PMD_INIT_LOG(ERR, "Failed to allocate memory for mac addr"); 164 ret = -ENOMEM; 165 goto alarm_fail; 166 } 167 if (is_zero_ether_addr((struct ether_addr *)nic->mac_addr)) 168 eth_random_addr(&nic->mac_addr[0]); 169 170 ether_addr_copy((struct ether_addr *)nic->mac_addr, 171 ð_dev->data->mac_addrs[0]); 172 173 ret = nicvf_mbox_set_mac_addr(nic, nic->mac_addr); 174 if (ret) { 175 PMD_INIT_LOG(ERR, "Failed to set mac addr"); 176 goto malloc_fail; 177 } 178 179 ret = nicvf_base_init(nic); 180 if (ret) { 181 PMD_INIT_LOG(ERR, "Failed to execute nicvf_base_init"); 182 goto malloc_fail; 183 } 184 185 ret = nicvf_mbox_get_rss_size(nic); 186 if (ret) { 187 PMD_INIT_LOG(ERR, "Failed to get rss table size"); 188 goto malloc_fail; 189 } 190 191 PMD_INIT_LOG(INFO, "Port %d (%x:%x) mac=%02x:%02x:%02x:%02x:%02x:%02x", 192 eth_dev->data->port_id, nic->vendor_id, nic->device_id, 193 nic->mac_addr[0], nic->mac_addr[1], nic->mac_addr[2], 194 nic->mac_addr[3], nic->mac_addr[4], nic->mac_addr[5]); 195 196 return 0; 197 198 malloc_fail: 199 rte_free(eth_dev->data->mac_addrs); 200 alarm_fail: 201 nicvf_periodic_alarm_stop(nic); 202 fail: 203 return ret; 204 } 205 206 static const struct rte_pci_id pci_id_nicvf_map[] = { 207 { 208 .class_id = RTE_CLASS_ANY_ID, 209 .vendor_id = PCI_VENDOR_ID_CAVIUM, 210 .device_id = PCI_DEVICE_ID_THUNDERX_PASS1_NICVF, 211 .subsystem_vendor_id = PCI_VENDOR_ID_CAVIUM, 212 .subsystem_device_id = PCI_SUB_DEVICE_ID_THUNDERX_PASS1_NICVF, 213 }, 214 { 215 .class_id = RTE_CLASS_ANY_ID, 216 .vendor_id = PCI_VENDOR_ID_CAVIUM, 217 .device_id = PCI_DEVICE_ID_THUNDERX_PASS2_NICVF, 218 .subsystem_vendor_id = PCI_VENDOR_ID_CAVIUM, 219 .subsystem_device_id = PCI_SUB_DEVICE_ID_THUNDERX_PASS2_NICVF, 220 }, 221 { 222 .vendor_id = 0, 223 }, 224 }; 225 226 static struct eth_driver rte_nicvf_pmd = { 227 .pci_drv = { 228 .name = "rte_nicvf_pmd", 229 .id_table = pci_id_nicvf_map, 230 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC, 231 }, 232 .eth_dev_init = nicvf_eth_dev_init, 233 .dev_private_size = sizeof(struct nicvf), 234 }; 235 236 static int 237 rte_nicvf_pmd_init(const char *name __rte_unused, const char *para __rte_unused) 238 { 239 PMD_INIT_FUNC_TRACE(); 240 PMD_INIT_LOG(INFO, "librte_pmd_thunderx nicvf version %s", 241 THUNDERX_NICVF_PMD_VERSION); 242 243 rte_eth_driver_register(&rte_nicvf_pmd); 244 return 0; 245 } 246 247 static struct rte_driver rte_nicvf_driver = { 248 .name = "nicvf_driver", 249 .type = PMD_PDEV, 250 .init = rte_nicvf_pmd_init, 251 }; 252 253 PMD_REGISTER_DRIVER(rte_nicvf_driver); 254