1 /* QLogic qede NIC Driver 2 * Copyright (c) 2015-2017 QLogic Corporation 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and /or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 #include <linux/module.h> 33 #include <linux/pci.h> 34 #include <linux/version.h> 35 #include <linux/device.h> 36 #include <linux/netdevice.h> 37 #include <linux/etherdevice.h> 38 #include <linux/skbuff.h> 39 #include <linux/errno.h> 40 #include <linux/list.h> 41 #include <linux/string.h> 42 #include <linux/dma-mapping.h> 43 #include <linux/interrupt.h> 44 #include <asm/byteorder.h> 45 #include <asm/param.h> 46 #include <linux/io.h> 47 #include <linux/netdev_features.h> 48 #include <linux/udp.h> 49 #include <linux/tcp.h> 50 #include <net/udp_tunnel.h> 51 #include <linux/ip.h> 52 #include <net/ipv6.h> 53 #include <net/tcp.h> 54 #include <linux/if_ether.h> 55 #include <linux/if_vlan.h> 56 #include <linux/pkt_sched.h> 57 #include <linux/ethtool.h> 58 #include <linux/in.h> 59 #include <linux/random.h> 60 #include <net/ip6_checksum.h> 61 #include <linux/bitops.h> 62 #include <linux/vmalloc.h> 63 #include <linux/qed/qede_roce.h> 64 #include "qede.h" 65 #include "qede_ptp.h" 66 67 static char version[] = 68 "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION "\n"; 69 70 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Ethernet Driver"); 71 MODULE_LICENSE("GPL"); 72 MODULE_VERSION(DRV_MODULE_VERSION); 73 74 static uint debug; 75 module_param(debug, uint, 0); 76 MODULE_PARM_DESC(debug, " Default debug msglevel"); 77 78 static const struct qed_eth_ops *qed_ops; 79 80 #define CHIP_NUM_57980S_40 0x1634 81 #define CHIP_NUM_57980S_10 0x1666 82 #define CHIP_NUM_57980S_MF 0x1636 83 #define CHIP_NUM_57980S_100 0x1644 84 #define CHIP_NUM_57980S_50 0x1654 85 #define CHIP_NUM_57980S_25 0x1656 86 #define CHIP_NUM_57980S_IOV 0x1664 87 88 #ifndef PCI_DEVICE_ID_NX2_57980E 89 #define PCI_DEVICE_ID_57980S_40 CHIP_NUM_57980S_40 90 #define PCI_DEVICE_ID_57980S_10 CHIP_NUM_57980S_10 91 #define PCI_DEVICE_ID_57980S_MF CHIP_NUM_57980S_MF 92 #define PCI_DEVICE_ID_57980S_100 CHIP_NUM_57980S_100 93 #define PCI_DEVICE_ID_57980S_50 CHIP_NUM_57980S_50 94 #define PCI_DEVICE_ID_57980S_25 CHIP_NUM_57980S_25 95 #define PCI_DEVICE_ID_57980S_IOV CHIP_NUM_57980S_IOV 96 #endif 97 98 enum qede_pci_private { 99 QEDE_PRIVATE_PF, 100 QEDE_PRIVATE_VF 101 }; 102 103 static const struct pci_device_id qede_pci_tbl[] = { 104 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_40), QEDE_PRIVATE_PF}, 105 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_10), QEDE_PRIVATE_PF}, 106 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_MF), QEDE_PRIVATE_PF}, 107 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_100), QEDE_PRIVATE_PF}, 108 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_50), QEDE_PRIVATE_PF}, 109 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_25), QEDE_PRIVATE_PF}, 110 #ifdef CONFIG_QED_SRIOV 111 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_IOV), QEDE_PRIVATE_VF}, 112 #endif 113 { 0 } 114 }; 115 116 MODULE_DEVICE_TABLE(pci, qede_pci_tbl); 117 118 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id); 119 120 #define TX_TIMEOUT (5 * HZ) 121 122 /* Utilize last protocol index for XDP */ 123 #define XDP_PI 11 124 125 static void qede_remove(struct pci_dev *pdev); 126 static void qede_shutdown(struct pci_dev *pdev); 127 static void qede_link_update(void *dev, struct qed_link_output *link); 128 129 /* The qede lock is used to protect driver state change and driver flows that 130 * are not reentrant. 131 */ 132 void __qede_lock(struct qede_dev *edev) 133 { 134 mutex_lock(&edev->qede_lock); 135 } 136 137 void __qede_unlock(struct qede_dev *edev) 138 { 139 mutex_unlock(&edev->qede_lock); 140 } 141 142 #ifdef CONFIG_QED_SRIOV 143 static int qede_set_vf_vlan(struct net_device *ndev, int vf, u16 vlan, u8 qos, 144 __be16 vlan_proto) 145 { 146 struct qede_dev *edev = netdev_priv(ndev); 147 148 if (vlan > 4095) { 149 DP_NOTICE(edev, "Illegal vlan value %d\n", vlan); 150 return -EINVAL; 151 } 152 153 if (vlan_proto != htons(ETH_P_8021Q)) 154 return -EPROTONOSUPPORT; 155 156 DP_VERBOSE(edev, QED_MSG_IOV, "Setting Vlan 0x%04x to VF [%d]\n", 157 vlan, vf); 158 159 return edev->ops->iov->set_vlan(edev->cdev, vlan, vf); 160 } 161 162 static int qede_set_vf_mac(struct net_device *ndev, int vfidx, u8 *mac) 163 { 164 struct qede_dev *edev = netdev_priv(ndev); 165 166 DP_VERBOSE(edev, QED_MSG_IOV, 167 "Setting MAC %02x:%02x:%02x:%02x:%02x:%02x to VF [%d]\n", 168 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], vfidx); 169 170 if (!is_valid_ether_addr(mac)) { 171 DP_VERBOSE(edev, QED_MSG_IOV, "MAC address isn't valid\n"); 172 return -EINVAL; 173 } 174 175 return edev->ops->iov->set_mac(edev->cdev, mac, vfidx); 176 } 177 178 static int qede_sriov_configure(struct pci_dev *pdev, int num_vfs_param) 179 { 180 struct qede_dev *edev = netdev_priv(pci_get_drvdata(pdev)); 181 struct qed_dev_info *qed_info = &edev->dev_info.common; 182 struct qed_update_vport_params *vport_params; 183 int rc; 184 185 vport_params = vzalloc(sizeof(*vport_params)); 186 if (!vport_params) 187 return -ENOMEM; 188 DP_VERBOSE(edev, QED_MSG_IOV, "Requested %d VFs\n", num_vfs_param); 189 190 rc = edev->ops->iov->configure(edev->cdev, num_vfs_param); 191 192 /* Enable/Disable Tx switching for PF */ 193 if ((rc == num_vfs_param) && netif_running(edev->ndev) && 194 qed_info->mf_mode != QED_MF_NPAR && qed_info->tx_switching) { 195 vport_params->vport_id = 0; 196 vport_params->update_tx_switching_flg = 1; 197 vport_params->tx_switching_flg = num_vfs_param ? 1 : 0; 198 edev->ops->vport_update(edev->cdev, vport_params); 199 } 200 201 vfree(vport_params); 202 return rc; 203 } 204 #endif 205 206 static struct pci_driver qede_pci_driver = { 207 .name = "qede", 208 .id_table = qede_pci_tbl, 209 .probe = qede_probe, 210 .remove = qede_remove, 211 .shutdown = qede_shutdown, 212 #ifdef CONFIG_QED_SRIOV 213 .sriov_configure = qede_sriov_configure, 214 #endif 215 }; 216 217 static struct qed_eth_cb_ops qede_ll_ops = { 218 { 219 .link_update = qede_link_update, 220 }, 221 .force_mac = qede_force_mac, 222 }; 223 224 static int qede_netdev_event(struct notifier_block *this, unsigned long event, 225 void *ptr) 226 { 227 struct net_device *ndev = netdev_notifier_info_to_dev(ptr); 228 struct ethtool_drvinfo drvinfo; 229 struct qede_dev *edev; 230 231 if (event != NETDEV_CHANGENAME && event != NETDEV_CHANGEADDR) 232 goto done; 233 234 /* Check whether this is a qede device */ 235 if (!ndev || !ndev->ethtool_ops || !ndev->ethtool_ops->get_drvinfo) 236 goto done; 237 238 memset(&drvinfo, 0, sizeof(drvinfo)); 239 ndev->ethtool_ops->get_drvinfo(ndev, &drvinfo); 240 if (strcmp(drvinfo.driver, "qede")) 241 goto done; 242 edev = netdev_priv(ndev); 243 244 switch (event) { 245 case NETDEV_CHANGENAME: 246 /* Notify qed of the name change */ 247 if (!edev->ops || !edev->ops->common) 248 goto done; 249 edev->ops->common->set_id(edev->cdev, edev->ndev->name, "qede"); 250 break; 251 case NETDEV_CHANGEADDR: 252 edev = netdev_priv(ndev); 253 qede_roce_event_changeaddr(edev); 254 break; 255 } 256 257 done: 258 return NOTIFY_DONE; 259 } 260 261 static struct notifier_block qede_netdev_notifier = { 262 .notifier_call = qede_netdev_event, 263 }; 264 265 static 266 int __init qede_init(void) 267 { 268 int ret; 269 270 pr_info("qede_init: %s\n", version); 271 272 qed_ops = qed_get_eth_ops(); 273 if (!qed_ops) { 274 pr_notice("Failed to get qed ethtool operations\n"); 275 return -EINVAL; 276 } 277 278 /* Must register notifier before pci ops, since we might miss 279 * interface rename after pci probe and netdev registeration. 280 */ 281 ret = register_netdevice_notifier(&qede_netdev_notifier); 282 if (ret) { 283 pr_notice("Failed to register netdevice_notifier\n"); 284 qed_put_eth_ops(); 285 return -EINVAL; 286 } 287 288 ret = pci_register_driver(&qede_pci_driver); 289 if (ret) { 290 pr_notice("Failed to register driver\n"); 291 unregister_netdevice_notifier(&qede_netdev_notifier); 292 qed_put_eth_ops(); 293 return -EINVAL; 294 } 295 296 return 0; 297 } 298 299 static void __exit qede_cleanup(void) 300 { 301 if (debug & QED_LOG_INFO_MASK) 302 pr_info("qede_cleanup called\n"); 303 304 unregister_netdevice_notifier(&qede_netdev_notifier); 305 pci_unregister_driver(&qede_pci_driver); 306 qed_put_eth_ops(); 307 } 308 309 module_init(qede_init); 310 module_exit(qede_cleanup); 311 312 static int qede_open(struct net_device *ndev); 313 static int qede_close(struct net_device *ndev); 314 315 void qede_fill_by_demand_stats(struct qede_dev *edev) 316 { 317 struct qed_eth_stats stats; 318 319 edev->ops->get_vport_stats(edev->cdev, &stats); 320 edev->stats.no_buff_discards = stats.no_buff_discards; 321 edev->stats.packet_too_big_discard = stats.packet_too_big_discard; 322 edev->stats.ttl0_discard = stats.ttl0_discard; 323 edev->stats.rx_ucast_bytes = stats.rx_ucast_bytes; 324 edev->stats.rx_mcast_bytes = stats.rx_mcast_bytes; 325 edev->stats.rx_bcast_bytes = stats.rx_bcast_bytes; 326 edev->stats.rx_ucast_pkts = stats.rx_ucast_pkts; 327 edev->stats.rx_mcast_pkts = stats.rx_mcast_pkts; 328 edev->stats.rx_bcast_pkts = stats.rx_bcast_pkts; 329 edev->stats.mftag_filter_discards = stats.mftag_filter_discards; 330 edev->stats.mac_filter_discards = stats.mac_filter_discards; 331 332 edev->stats.tx_ucast_bytes = stats.tx_ucast_bytes; 333 edev->stats.tx_mcast_bytes = stats.tx_mcast_bytes; 334 edev->stats.tx_bcast_bytes = stats.tx_bcast_bytes; 335 edev->stats.tx_ucast_pkts = stats.tx_ucast_pkts; 336 edev->stats.tx_mcast_pkts = stats.tx_mcast_pkts; 337 edev->stats.tx_bcast_pkts = stats.tx_bcast_pkts; 338 edev->stats.tx_err_drop_pkts = stats.tx_err_drop_pkts; 339 edev->stats.coalesced_pkts = stats.tpa_coalesced_pkts; 340 edev->stats.coalesced_events = stats.tpa_coalesced_events; 341 edev->stats.coalesced_aborts_num = stats.tpa_aborts_num; 342 edev->stats.non_coalesced_pkts = stats.tpa_not_coalesced_pkts; 343 edev->stats.coalesced_bytes = stats.tpa_coalesced_bytes; 344 345 edev->stats.rx_64_byte_packets = stats.rx_64_byte_packets; 346 edev->stats.rx_65_to_127_byte_packets = stats.rx_65_to_127_byte_packets; 347 edev->stats.rx_128_to_255_byte_packets = 348 stats.rx_128_to_255_byte_packets; 349 edev->stats.rx_256_to_511_byte_packets = 350 stats.rx_256_to_511_byte_packets; 351 edev->stats.rx_512_to_1023_byte_packets = 352 stats.rx_512_to_1023_byte_packets; 353 edev->stats.rx_1024_to_1518_byte_packets = 354 stats.rx_1024_to_1518_byte_packets; 355 edev->stats.rx_1519_to_1522_byte_packets = 356 stats.rx_1519_to_1522_byte_packets; 357 edev->stats.rx_1519_to_2047_byte_packets = 358 stats.rx_1519_to_2047_byte_packets; 359 edev->stats.rx_2048_to_4095_byte_packets = 360 stats.rx_2048_to_4095_byte_packets; 361 edev->stats.rx_4096_to_9216_byte_packets = 362 stats.rx_4096_to_9216_byte_packets; 363 edev->stats.rx_9217_to_16383_byte_packets = 364 stats.rx_9217_to_16383_byte_packets; 365 edev->stats.rx_crc_errors = stats.rx_crc_errors; 366 edev->stats.rx_mac_crtl_frames = stats.rx_mac_crtl_frames; 367 edev->stats.rx_pause_frames = stats.rx_pause_frames; 368 edev->stats.rx_pfc_frames = stats.rx_pfc_frames; 369 edev->stats.rx_align_errors = stats.rx_align_errors; 370 edev->stats.rx_carrier_errors = stats.rx_carrier_errors; 371 edev->stats.rx_oversize_packets = stats.rx_oversize_packets; 372 edev->stats.rx_jabbers = stats.rx_jabbers; 373 edev->stats.rx_undersize_packets = stats.rx_undersize_packets; 374 edev->stats.rx_fragments = stats.rx_fragments; 375 edev->stats.tx_64_byte_packets = stats.tx_64_byte_packets; 376 edev->stats.tx_65_to_127_byte_packets = stats.tx_65_to_127_byte_packets; 377 edev->stats.tx_128_to_255_byte_packets = 378 stats.tx_128_to_255_byte_packets; 379 edev->stats.tx_256_to_511_byte_packets = 380 stats.tx_256_to_511_byte_packets; 381 edev->stats.tx_512_to_1023_byte_packets = 382 stats.tx_512_to_1023_byte_packets; 383 edev->stats.tx_1024_to_1518_byte_packets = 384 stats.tx_1024_to_1518_byte_packets; 385 edev->stats.tx_1519_to_2047_byte_packets = 386 stats.tx_1519_to_2047_byte_packets; 387 edev->stats.tx_2048_to_4095_byte_packets = 388 stats.tx_2048_to_4095_byte_packets; 389 edev->stats.tx_4096_to_9216_byte_packets = 390 stats.tx_4096_to_9216_byte_packets; 391 edev->stats.tx_9217_to_16383_byte_packets = 392 stats.tx_9217_to_16383_byte_packets; 393 edev->stats.tx_pause_frames = stats.tx_pause_frames; 394 edev->stats.tx_pfc_frames = stats.tx_pfc_frames; 395 edev->stats.tx_lpi_entry_count = stats.tx_lpi_entry_count; 396 edev->stats.tx_total_collisions = stats.tx_total_collisions; 397 edev->stats.brb_truncates = stats.brb_truncates; 398 edev->stats.brb_discards = stats.brb_discards; 399 edev->stats.tx_mac_ctrl_frames = stats.tx_mac_ctrl_frames; 400 } 401 402 static void qede_get_stats64(struct net_device *dev, 403 struct rtnl_link_stats64 *stats) 404 { 405 struct qede_dev *edev = netdev_priv(dev); 406 407 qede_fill_by_demand_stats(edev); 408 409 stats->rx_packets = edev->stats.rx_ucast_pkts + 410 edev->stats.rx_mcast_pkts + 411 edev->stats.rx_bcast_pkts; 412 stats->tx_packets = edev->stats.tx_ucast_pkts + 413 edev->stats.tx_mcast_pkts + 414 edev->stats.tx_bcast_pkts; 415 416 stats->rx_bytes = edev->stats.rx_ucast_bytes + 417 edev->stats.rx_mcast_bytes + 418 edev->stats.rx_bcast_bytes; 419 420 stats->tx_bytes = edev->stats.tx_ucast_bytes + 421 edev->stats.tx_mcast_bytes + 422 edev->stats.tx_bcast_bytes; 423 424 stats->tx_errors = edev->stats.tx_err_drop_pkts; 425 stats->multicast = edev->stats.rx_mcast_pkts + 426 edev->stats.rx_bcast_pkts; 427 428 stats->rx_fifo_errors = edev->stats.no_buff_discards; 429 430 stats->collisions = edev->stats.tx_total_collisions; 431 stats->rx_crc_errors = edev->stats.rx_crc_errors; 432 stats->rx_frame_errors = edev->stats.rx_align_errors; 433 } 434 435 #ifdef CONFIG_QED_SRIOV 436 static int qede_get_vf_config(struct net_device *dev, int vfidx, 437 struct ifla_vf_info *ivi) 438 { 439 struct qede_dev *edev = netdev_priv(dev); 440 441 if (!edev->ops) 442 return -EINVAL; 443 444 return edev->ops->iov->get_config(edev->cdev, vfidx, ivi); 445 } 446 447 static int qede_set_vf_rate(struct net_device *dev, int vfidx, 448 int min_tx_rate, int max_tx_rate) 449 { 450 struct qede_dev *edev = netdev_priv(dev); 451 452 return edev->ops->iov->set_rate(edev->cdev, vfidx, min_tx_rate, 453 max_tx_rate); 454 } 455 456 static int qede_set_vf_spoofchk(struct net_device *dev, int vfidx, bool val) 457 { 458 struct qede_dev *edev = netdev_priv(dev); 459 460 if (!edev->ops) 461 return -EINVAL; 462 463 return edev->ops->iov->set_spoof(edev->cdev, vfidx, val); 464 } 465 466 static int qede_set_vf_link_state(struct net_device *dev, int vfidx, 467 int link_state) 468 { 469 struct qede_dev *edev = netdev_priv(dev); 470 471 if (!edev->ops) 472 return -EINVAL; 473 474 return edev->ops->iov->set_link_state(edev->cdev, vfidx, link_state); 475 } 476 477 static int qede_set_vf_trust(struct net_device *dev, int vfidx, bool setting) 478 { 479 struct qede_dev *edev = netdev_priv(dev); 480 481 if (!edev->ops) 482 return -EINVAL; 483 484 return edev->ops->iov->set_trust(edev->cdev, vfidx, setting); 485 } 486 #endif 487 488 static int qede_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 489 { 490 struct qede_dev *edev = netdev_priv(dev); 491 492 if (!netif_running(dev)) 493 return -EAGAIN; 494 495 switch (cmd) { 496 case SIOCSHWTSTAMP: 497 return qede_ptp_hw_ts(edev, ifr); 498 default: 499 DP_VERBOSE(edev, QED_MSG_DEBUG, 500 "default IOCTL cmd 0x%x\n", cmd); 501 return -EOPNOTSUPP; 502 } 503 504 return 0; 505 } 506 507 static const struct net_device_ops qede_netdev_ops = { 508 .ndo_open = qede_open, 509 .ndo_stop = qede_close, 510 .ndo_start_xmit = qede_start_xmit, 511 .ndo_set_rx_mode = qede_set_rx_mode, 512 .ndo_set_mac_address = qede_set_mac_addr, 513 .ndo_validate_addr = eth_validate_addr, 514 .ndo_change_mtu = qede_change_mtu, 515 .ndo_do_ioctl = qede_ioctl, 516 #ifdef CONFIG_QED_SRIOV 517 .ndo_set_vf_mac = qede_set_vf_mac, 518 .ndo_set_vf_vlan = qede_set_vf_vlan, 519 .ndo_set_vf_trust = qede_set_vf_trust, 520 #endif 521 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid, 522 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid, 523 .ndo_set_features = qede_set_features, 524 .ndo_get_stats64 = qede_get_stats64, 525 #ifdef CONFIG_QED_SRIOV 526 .ndo_set_vf_link_state = qede_set_vf_link_state, 527 .ndo_set_vf_spoofchk = qede_set_vf_spoofchk, 528 .ndo_get_vf_config = qede_get_vf_config, 529 .ndo_set_vf_rate = qede_set_vf_rate, 530 #endif 531 .ndo_udp_tunnel_add = qede_udp_tunnel_add, 532 .ndo_udp_tunnel_del = qede_udp_tunnel_del, 533 .ndo_features_check = qede_features_check, 534 .ndo_xdp = qede_xdp, 535 }; 536 537 /* ------------------------------------------------------------------------- 538 * START OF PROBE / REMOVE 539 * ------------------------------------------------------------------------- 540 */ 541 542 static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev, 543 struct pci_dev *pdev, 544 struct qed_dev_eth_info *info, 545 u32 dp_module, u8 dp_level) 546 { 547 struct net_device *ndev; 548 struct qede_dev *edev; 549 550 ndev = alloc_etherdev_mqs(sizeof(*edev), 551 info->num_queues, info->num_queues); 552 if (!ndev) { 553 pr_err("etherdev allocation failed\n"); 554 return NULL; 555 } 556 557 edev = netdev_priv(ndev); 558 edev->ndev = ndev; 559 edev->cdev = cdev; 560 edev->pdev = pdev; 561 edev->dp_module = dp_module; 562 edev->dp_level = dp_level; 563 edev->ops = qed_ops; 564 edev->q_num_rx_buffers = NUM_RX_BDS_DEF; 565 edev->q_num_tx_buffers = NUM_TX_BDS_DEF; 566 567 DP_INFO(edev, "Allocated netdev with %d tx queues and %d rx queues\n", 568 info->num_queues, info->num_queues); 569 570 SET_NETDEV_DEV(ndev, &pdev->dev); 571 572 memset(&edev->stats, 0, sizeof(edev->stats)); 573 memcpy(&edev->dev_info, info, sizeof(*info)); 574 575 INIT_LIST_HEAD(&edev->vlan_list); 576 577 return edev; 578 } 579 580 static void qede_init_ndev(struct qede_dev *edev) 581 { 582 struct net_device *ndev = edev->ndev; 583 struct pci_dev *pdev = edev->pdev; 584 u32 hw_features; 585 586 pci_set_drvdata(pdev, ndev); 587 588 ndev->mem_start = edev->dev_info.common.pci_mem_start; 589 ndev->base_addr = ndev->mem_start; 590 ndev->mem_end = edev->dev_info.common.pci_mem_end; 591 ndev->irq = edev->dev_info.common.pci_irq; 592 593 ndev->watchdog_timeo = TX_TIMEOUT; 594 595 ndev->netdev_ops = &qede_netdev_ops; 596 597 qede_set_ethtool_ops(ndev); 598 599 ndev->priv_flags |= IFF_UNICAST_FLT; 600 601 /* user-changeble features */ 602 hw_features = NETIF_F_GRO | NETIF_F_SG | 603 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | 604 NETIF_F_TSO | NETIF_F_TSO6; 605 606 /* Encap features*/ 607 hw_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL | 608 NETIF_F_TSO_ECN | NETIF_F_GSO_UDP_TUNNEL_CSUM | 609 NETIF_F_GSO_GRE_CSUM; 610 ndev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | 611 NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO_ECN | 612 NETIF_F_TSO6 | NETIF_F_GSO_GRE | 613 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_RXCSUM | 614 NETIF_F_GSO_UDP_TUNNEL_CSUM | 615 NETIF_F_GSO_GRE_CSUM; 616 617 ndev->vlan_features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM | 618 NETIF_F_HIGHDMA; 619 ndev->features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM | 620 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA | 621 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_TX; 622 623 ndev->hw_features = hw_features; 624 625 /* MTU range: 46 - 9600 */ 626 ndev->min_mtu = ETH_ZLEN - ETH_HLEN; 627 ndev->max_mtu = QEDE_MAX_JUMBO_PACKET_SIZE; 628 629 /* Set network device HW mac */ 630 ether_addr_copy(edev->ndev->dev_addr, edev->dev_info.common.hw_mac); 631 632 ndev->mtu = edev->dev_info.common.mtu; 633 } 634 635 /* This function converts from 32b param to two params of level and module 636 * Input 32b decoding: 637 * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the 638 * 'happy' flow, e.g. memory allocation failed. 639 * b30 - enable all INFO prints. INFO prints are for major steps in the flow 640 * and provide important parameters. 641 * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that 642 * module. VERBOSE prints are for tracking the specific flow in low level. 643 * 644 * Notice that the level should be that of the lowest required logs. 645 */ 646 void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level) 647 { 648 *p_dp_level = QED_LEVEL_NOTICE; 649 *p_dp_module = 0; 650 651 if (debug & QED_LOG_VERBOSE_MASK) { 652 *p_dp_level = QED_LEVEL_VERBOSE; 653 *p_dp_module = (debug & 0x3FFFFFFF); 654 } else if (debug & QED_LOG_INFO_MASK) { 655 *p_dp_level = QED_LEVEL_INFO; 656 } else if (debug & QED_LOG_NOTICE_MASK) { 657 *p_dp_level = QED_LEVEL_NOTICE; 658 } 659 } 660 661 static void qede_free_fp_array(struct qede_dev *edev) 662 { 663 if (edev->fp_array) { 664 struct qede_fastpath *fp; 665 int i; 666 667 for_each_queue(i) { 668 fp = &edev->fp_array[i]; 669 670 kfree(fp->sb_info); 671 kfree(fp->rxq); 672 kfree(fp->xdp_tx); 673 kfree(fp->txq); 674 } 675 kfree(edev->fp_array); 676 } 677 678 edev->num_queues = 0; 679 edev->fp_num_tx = 0; 680 edev->fp_num_rx = 0; 681 } 682 683 static int qede_alloc_fp_array(struct qede_dev *edev) 684 { 685 u8 fp_combined, fp_rx = edev->fp_num_rx; 686 struct qede_fastpath *fp; 687 int i; 688 689 edev->fp_array = kcalloc(QEDE_QUEUE_CNT(edev), 690 sizeof(*edev->fp_array), GFP_KERNEL); 691 if (!edev->fp_array) { 692 DP_NOTICE(edev, "fp array allocation failed\n"); 693 goto err; 694 } 695 696 fp_combined = QEDE_QUEUE_CNT(edev) - fp_rx - edev->fp_num_tx; 697 698 /* Allocate the FP elements for Rx queues followed by combined and then 699 * the Tx. This ordering should be maintained so that the respective 700 * queues (Rx or Tx) will be together in the fastpath array and the 701 * associated ids will be sequential. 702 */ 703 for_each_queue(i) { 704 fp = &edev->fp_array[i]; 705 706 fp->sb_info = kzalloc(sizeof(*fp->sb_info), GFP_KERNEL); 707 if (!fp->sb_info) { 708 DP_NOTICE(edev, "sb info struct allocation failed\n"); 709 goto err; 710 } 711 712 if (fp_rx) { 713 fp->type = QEDE_FASTPATH_RX; 714 fp_rx--; 715 } else if (fp_combined) { 716 fp->type = QEDE_FASTPATH_COMBINED; 717 fp_combined--; 718 } else { 719 fp->type = QEDE_FASTPATH_TX; 720 } 721 722 if (fp->type & QEDE_FASTPATH_TX) { 723 fp->txq = kzalloc(sizeof(*fp->txq), GFP_KERNEL); 724 if (!fp->txq) 725 goto err; 726 } 727 728 if (fp->type & QEDE_FASTPATH_RX) { 729 fp->rxq = kzalloc(sizeof(*fp->rxq), GFP_KERNEL); 730 if (!fp->rxq) 731 goto err; 732 733 if (edev->xdp_prog) { 734 fp->xdp_tx = kzalloc(sizeof(*fp->xdp_tx), 735 GFP_KERNEL); 736 if (!fp->xdp_tx) 737 goto err; 738 fp->type |= QEDE_FASTPATH_XDP; 739 } 740 } 741 } 742 743 return 0; 744 err: 745 qede_free_fp_array(edev); 746 return -ENOMEM; 747 } 748 749 static void qede_sp_task(struct work_struct *work) 750 { 751 struct qede_dev *edev = container_of(work, struct qede_dev, 752 sp_task.work); 753 struct qed_dev *cdev = edev->cdev; 754 755 __qede_lock(edev); 756 757 if (test_and_clear_bit(QEDE_SP_RX_MODE, &edev->sp_flags)) 758 if (edev->state == QEDE_STATE_OPEN) 759 qede_config_rx_mode(edev->ndev); 760 761 if (test_and_clear_bit(QEDE_SP_VXLAN_PORT_CONFIG, &edev->sp_flags)) { 762 struct qed_tunn_params tunn_params; 763 764 memset(&tunn_params, 0, sizeof(tunn_params)); 765 tunn_params.update_vxlan_port = 1; 766 tunn_params.vxlan_port = edev->vxlan_dst_port; 767 qed_ops->tunn_config(cdev, &tunn_params); 768 } 769 770 if (test_and_clear_bit(QEDE_SP_GENEVE_PORT_CONFIG, &edev->sp_flags)) { 771 struct qed_tunn_params tunn_params; 772 773 memset(&tunn_params, 0, sizeof(tunn_params)); 774 tunn_params.update_geneve_port = 1; 775 tunn_params.geneve_port = edev->geneve_dst_port; 776 qed_ops->tunn_config(cdev, &tunn_params); 777 } 778 779 __qede_unlock(edev); 780 } 781 782 static void qede_update_pf_params(struct qed_dev *cdev) 783 { 784 struct qed_pf_params pf_params; 785 786 /* 64 rx + 64 tx + 64 XDP */ 787 memset(&pf_params, 0, sizeof(struct qed_pf_params)); 788 pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * 3; 789 qed_ops->common->update_pf_params(cdev, &pf_params); 790 } 791 792 enum qede_probe_mode { 793 QEDE_PROBE_NORMAL, 794 }; 795 796 static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level, 797 bool is_vf, enum qede_probe_mode mode) 798 { 799 struct qed_probe_params probe_params; 800 struct qed_slowpath_params sp_params; 801 struct qed_dev_eth_info dev_info; 802 struct qede_dev *edev; 803 struct qed_dev *cdev; 804 int rc; 805 806 if (unlikely(dp_level & QED_LEVEL_INFO)) 807 pr_notice("Starting qede probe\n"); 808 809 memset(&probe_params, 0, sizeof(probe_params)); 810 probe_params.protocol = QED_PROTOCOL_ETH; 811 probe_params.dp_module = dp_module; 812 probe_params.dp_level = dp_level; 813 probe_params.is_vf = is_vf; 814 cdev = qed_ops->common->probe(pdev, &probe_params); 815 if (!cdev) { 816 rc = -ENODEV; 817 goto err0; 818 } 819 820 qede_update_pf_params(cdev); 821 822 /* Start the Slowpath-process */ 823 memset(&sp_params, 0, sizeof(sp_params)); 824 sp_params.int_mode = QED_INT_MODE_MSIX; 825 sp_params.drv_major = QEDE_MAJOR_VERSION; 826 sp_params.drv_minor = QEDE_MINOR_VERSION; 827 sp_params.drv_rev = QEDE_REVISION_VERSION; 828 sp_params.drv_eng = QEDE_ENGINEERING_VERSION; 829 strlcpy(sp_params.name, "qede LAN", QED_DRV_VER_STR_SIZE); 830 rc = qed_ops->common->slowpath_start(cdev, &sp_params); 831 if (rc) { 832 pr_notice("Cannot start slowpath\n"); 833 goto err1; 834 } 835 836 /* Learn information crucial for qede to progress */ 837 rc = qed_ops->fill_dev_info(cdev, &dev_info); 838 if (rc) 839 goto err2; 840 841 edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module, 842 dp_level); 843 if (!edev) { 844 rc = -ENOMEM; 845 goto err2; 846 } 847 848 if (is_vf) 849 edev->flags |= QEDE_FLAG_IS_VF; 850 851 qede_init_ndev(edev); 852 853 rc = qede_roce_dev_add(edev); 854 if (rc) 855 goto err3; 856 857 /* Prepare the lock prior to the registeration of the netdev, 858 * as once it's registered we might reach flows requiring it 859 * [it's even possible to reach a flow needing it directly 860 * from there, although it's unlikely]. 861 */ 862 INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task); 863 mutex_init(&edev->qede_lock); 864 rc = register_netdev(edev->ndev); 865 if (rc) { 866 DP_NOTICE(edev, "Cannot register net-device\n"); 867 goto err4; 868 } 869 870 edev->ops->common->set_id(cdev, edev->ndev->name, DRV_MODULE_VERSION); 871 872 /* PTP not supported on VFs */ 873 if (!is_vf) { 874 rc = qede_ptp_register_phc(edev); 875 if (rc) { 876 DP_NOTICE(edev, "Cannot register PHC\n"); 877 goto err5; 878 } 879 } 880 881 edev->ops->register_ops(cdev, &qede_ll_ops, edev); 882 883 #ifdef CONFIG_DCB 884 if (!IS_VF(edev)) 885 qede_set_dcbnl_ops(edev->ndev); 886 #endif 887 888 edev->rx_copybreak = QEDE_RX_HDR_SIZE; 889 890 DP_INFO(edev, "Ending successfully qede probe\n"); 891 892 return 0; 893 894 err5: 895 unregister_netdev(edev->ndev); 896 err4: 897 qede_roce_dev_remove(edev); 898 err3: 899 free_netdev(edev->ndev); 900 err2: 901 qed_ops->common->slowpath_stop(cdev); 902 err1: 903 qed_ops->common->remove(cdev); 904 err0: 905 return rc; 906 } 907 908 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id) 909 { 910 bool is_vf = false; 911 u32 dp_module = 0; 912 u8 dp_level = 0; 913 914 switch ((enum qede_pci_private)id->driver_data) { 915 case QEDE_PRIVATE_VF: 916 if (debug & QED_LOG_VERBOSE_MASK) 917 dev_err(&pdev->dev, "Probing a VF\n"); 918 is_vf = true; 919 break; 920 default: 921 if (debug & QED_LOG_VERBOSE_MASK) 922 dev_err(&pdev->dev, "Probing a PF\n"); 923 } 924 925 qede_config_debug(debug, &dp_module, &dp_level); 926 927 return __qede_probe(pdev, dp_module, dp_level, is_vf, 928 QEDE_PROBE_NORMAL); 929 } 930 931 enum qede_remove_mode { 932 QEDE_REMOVE_NORMAL, 933 }; 934 935 static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode) 936 { 937 struct net_device *ndev = pci_get_drvdata(pdev); 938 struct qede_dev *edev = netdev_priv(ndev); 939 struct qed_dev *cdev = edev->cdev; 940 941 DP_INFO(edev, "Starting qede_remove\n"); 942 943 cancel_delayed_work_sync(&edev->sp_task); 944 945 unregister_netdev(ndev); 946 947 qede_ptp_remove(edev); 948 949 qede_roce_dev_remove(edev); 950 951 edev->ops->common->set_power_state(cdev, PCI_D0); 952 953 pci_set_drvdata(pdev, NULL); 954 955 /* Release edev's reference to XDP's bpf if such exist */ 956 if (edev->xdp_prog) 957 bpf_prog_put(edev->xdp_prog); 958 959 /* Use global ops since we've freed edev */ 960 qed_ops->common->slowpath_stop(cdev); 961 if (system_state == SYSTEM_POWER_OFF) 962 return; 963 qed_ops->common->remove(cdev); 964 965 /* Since this can happen out-of-sync with other flows, 966 * don't release the netdevice until after slowpath stop 967 * has been called to guarantee various other contexts 968 * [e.g., QED register callbacks] won't break anything when 969 * accessing the netdevice. 970 */ 971 free_netdev(ndev); 972 973 dev_info(&pdev->dev, "Ending qede_remove successfully\n"); 974 } 975 976 static void qede_remove(struct pci_dev *pdev) 977 { 978 __qede_remove(pdev, QEDE_REMOVE_NORMAL); 979 } 980 981 static void qede_shutdown(struct pci_dev *pdev) 982 { 983 __qede_remove(pdev, QEDE_REMOVE_NORMAL); 984 } 985 986 /* ------------------------------------------------------------------------- 987 * START OF LOAD / UNLOAD 988 * ------------------------------------------------------------------------- 989 */ 990 991 static int qede_set_num_queues(struct qede_dev *edev) 992 { 993 int rc; 994 u16 rss_num; 995 996 /* Setup queues according to possible resources*/ 997 if (edev->req_queues) 998 rss_num = edev->req_queues; 999 else 1000 rss_num = netif_get_num_default_rss_queues() * 1001 edev->dev_info.common.num_hwfns; 1002 1003 rss_num = min_t(u16, QEDE_MAX_RSS_CNT(edev), rss_num); 1004 1005 rc = edev->ops->common->set_fp_int(edev->cdev, rss_num); 1006 if (rc > 0) { 1007 /* Managed to request interrupts for our queues */ 1008 edev->num_queues = rc; 1009 DP_INFO(edev, "Managed %d [of %d] RSS queues\n", 1010 QEDE_QUEUE_CNT(edev), rss_num); 1011 rc = 0; 1012 } 1013 1014 edev->fp_num_tx = edev->req_num_tx; 1015 edev->fp_num_rx = edev->req_num_rx; 1016 1017 return rc; 1018 } 1019 1020 static void qede_free_mem_sb(struct qede_dev *edev, 1021 struct qed_sb_info *sb_info) 1022 { 1023 if (sb_info->sb_virt) 1024 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_info->sb_virt), 1025 (void *)sb_info->sb_virt, sb_info->sb_phys); 1026 } 1027 1028 /* This function allocates fast-path status block memory */ 1029 static int qede_alloc_mem_sb(struct qede_dev *edev, 1030 struct qed_sb_info *sb_info, u16 sb_id) 1031 { 1032 struct status_block *sb_virt; 1033 dma_addr_t sb_phys; 1034 int rc; 1035 1036 sb_virt = dma_alloc_coherent(&edev->pdev->dev, 1037 sizeof(*sb_virt), &sb_phys, GFP_KERNEL); 1038 if (!sb_virt) { 1039 DP_ERR(edev, "Status block allocation failed\n"); 1040 return -ENOMEM; 1041 } 1042 1043 rc = edev->ops->common->sb_init(edev->cdev, sb_info, 1044 sb_virt, sb_phys, sb_id, 1045 QED_SB_TYPE_L2_QUEUE); 1046 if (rc) { 1047 DP_ERR(edev, "Status block initialization failed\n"); 1048 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_virt), 1049 sb_virt, sb_phys); 1050 return rc; 1051 } 1052 1053 return 0; 1054 } 1055 1056 static void qede_free_rx_buffers(struct qede_dev *edev, 1057 struct qede_rx_queue *rxq) 1058 { 1059 u16 i; 1060 1061 for (i = rxq->sw_rx_cons; i != rxq->sw_rx_prod; i++) { 1062 struct sw_rx_data *rx_buf; 1063 struct page *data; 1064 1065 rx_buf = &rxq->sw_rx_ring[i & NUM_RX_BDS_MAX]; 1066 data = rx_buf->data; 1067 1068 dma_unmap_page(&edev->pdev->dev, 1069 rx_buf->mapping, PAGE_SIZE, rxq->data_direction); 1070 1071 rx_buf->data = NULL; 1072 __free_page(data); 1073 } 1074 } 1075 1076 static void qede_free_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq) 1077 { 1078 int i; 1079 1080 if (edev->gro_disable) 1081 return; 1082 1083 for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) { 1084 struct qede_agg_info *tpa_info = &rxq->tpa_info[i]; 1085 struct sw_rx_data *replace_buf = &tpa_info->buffer; 1086 1087 if (replace_buf->data) { 1088 dma_unmap_page(&edev->pdev->dev, 1089 replace_buf->mapping, 1090 PAGE_SIZE, DMA_FROM_DEVICE); 1091 __free_page(replace_buf->data); 1092 } 1093 } 1094 } 1095 1096 static void qede_free_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq) 1097 { 1098 qede_free_sge_mem(edev, rxq); 1099 1100 /* Free rx buffers */ 1101 qede_free_rx_buffers(edev, rxq); 1102 1103 /* Free the parallel SW ring */ 1104 kfree(rxq->sw_rx_ring); 1105 1106 /* Free the real RQ ring used by FW */ 1107 edev->ops->common->chain_free(edev->cdev, &rxq->rx_bd_ring); 1108 edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring); 1109 } 1110 1111 static int qede_alloc_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq) 1112 { 1113 dma_addr_t mapping; 1114 int i; 1115 1116 /* Don't perform FW aggregations in case of XDP */ 1117 if (edev->xdp_prog) 1118 edev->gro_disable = 1; 1119 1120 if (edev->gro_disable) 1121 return 0; 1122 1123 if (edev->ndev->mtu > PAGE_SIZE) { 1124 edev->gro_disable = 1; 1125 return 0; 1126 } 1127 1128 for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) { 1129 struct qede_agg_info *tpa_info = &rxq->tpa_info[i]; 1130 struct sw_rx_data *replace_buf = &tpa_info->buffer; 1131 1132 replace_buf->data = alloc_pages(GFP_ATOMIC, 0); 1133 if (unlikely(!replace_buf->data)) { 1134 DP_NOTICE(edev, 1135 "Failed to allocate TPA skb pool [replacement buffer]\n"); 1136 goto err; 1137 } 1138 1139 mapping = dma_map_page(&edev->pdev->dev, replace_buf->data, 0, 1140 PAGE_SIZE, DMA_FROM_DEVICE); 1141 if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) { 1142 DP_NOTICE(edev, 1143 "Failed to map TPA replacement buffer\n"); 1144 goto err; 1145 } 1146 1147 replace_buf->mapping = mapping; 1148 tpa_info->buffer.page_offset = 0; 1149 tpa_info->buffer_mapping = mapping; 1150 tpa_info->state = QEDE_AGG_STATE_NONE; 1151 } 1152 1153 return 0; 1154 err: 1155 qede_free_sge_mem(edev, rxq); 1156 edev->gro_disable = 1; 1157 return -ENOMEM; 1158 } 1159 1160 /* This function allocates all memory needed per Rx queue */ 1161 static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq) 1162 { 1163 int i, rc, size; 1164 1165 rxq->num_rx_buffers = edev->q_num_rx_buffers; 1166 1167 rxq->rx_buf_size = NET_IP_ALIGN + ETH_OVERHEAD + edev->ndev->mtu; 1168 1169 if (rxq->rx_buf_size > PAGE_SIZE) 1170 rxq->rx_buf_size = PAGE_SIZE; 1171 1172 /* Segment size to spilt a page in multiple equal parts, 1173 * unless XDP is used in which case we'd use the entire page. 1174 */ 1175 if (!edev->xdp_prog) 1176 rxq->rx_buf_seg_size = roundup_pow_of_two(rxq->rx_buf_size); 1177 else 1178 rxq->rx_buf_seg_size = PAGE_SIZE; 1179 1180 /* Allocate the parallel driver ring for Rx buffers */ 1181 size = sizeof(*rxq->sw_rx_ring) * RX_RING_SIZE; 1182 rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL); 1183 if (!rxq->sw_rx_ring) { 1184 DP_ERR(edev, "Rx buffers ring allocation failed\n"); 1185 rc = -ENOMEM; 1186 goto err; 1187 } 1188 1189 /* Allocate FW Rx ring */ 1190 rc = edev->ops->common->chain_alloc(edev->cdev, 1191 QED_CHAIN_USE_TO_CONSUME_PRODUCE, 1192 QED_CHAIN_MODE_NEXT_PTR, 1193 QED_CHAIN_CNT_TYPE_U16, 1194 RX_RING_SIZE, 1195 sizeof(struct eth_rx_bd), 1196 &rxq->rx_bd_ring); 1197 1198 if (rc) 1199 goto err; 1200 1201 /* Allocate FW completion ring */ 1202 rc = edev->ops->common->chain_alloc(edev->cdev, 1203 QED_CHAIN_USE_TO_CONSUME, 1204 QED_CHAIN_MODE_PBL, 1205 QED_CHAIN_CNT_TYPE_U16, 1206 RX_RING_SIZE, 1207 sizeof(union eth_rx_cqe), 1208 &rxq->rx_comp_ring); 1209 if (rc) 1210 goto err; 1211 1212 /* Allocate buffers for the Rx ring */ 1213 rxq->filled_buffers = 0; 1214 for (i = 0; i < rxq->num_rx_buffers; i++) { 1215 rc = qede_alloc_rx_buffer(rxq, false); 1216 if (rc) { 1217 DP_ERR(edev, 1218 "Rx buffers allocation failed at index %d\n", i); 1219 goto err; 1220 } 1221 } 1222 1223 rc = qede_alloc_sge_mem(edev, rxq); 1224 err: 1225 return rc; 1226 } 1227 1228 static void qede_free_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq) 1229 { 1230 /* Free the parallel SW ring */ 1231 if (txq->is_xdp) 1232 kfree(txq->sw_tx_ring.pages); 1233 else 1234 kfree(txq->sw_tx_ring.skbs); 1235 1236 /* Free the real RQ ring used by FW */ 1237 edev->ops->common->chain_free(edev->cdev, &txq->tx_pbl); 1238 } 1239 1240 /* This function allocates all memory needed per Tx queue */ 1241 static int qede_alloc_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq) 1242 { 1243 union eth_tx_bd_types *p_virt; 1244 int size, rc; 1245 1246 txq->num_tx_buffers = edev->q_num_tx_buffers; 1247 1248 /* Allocate the parallel driver ring for Tx buffers */ 1249 if (txq->is_xdp) { 1250 size = sizeof(*txq->sw_tx_ring.pages) * TX_RING_SIZE; 1251 txq->sw_tx_ring.pages = kzalloc(size, GFP_KERNEL); 1252 if (!txq->sw_tx_ring.pages) 1253 goto err; 1254 } else { 1255 size = sizeof(*txq->sw_tx_ring.skbs) * TX_RING_SIZE; 1256 txq->sw_tx_ring.skbs = kzalloc(size, GFP_KERNEL); 1257 if (!txq->sw_tx_ring.skbs) 1258 goto err; 1259 } 1260 1261 rc = edev->ops->common->chain_alloc(edev->cdev, 1262 QED_CHAIN_USE_TO_CONSUME_PRODUCE, 1263 QED_CHAIN_MODE_PBL, 1264 QED_CHAIN_CNT_TYPE_U16, 1265 TX_RING_SIZE, 1266 sizeof(*p_virt), &txq->tx_pbl); 1267 if (rc) 1268 goto err; 1269 1270 return 0; 1271 1272 err: 1273 qede_free_mem_txq(edev, txq); 1274 return -ENOMEM; 1275 } 1276 1277 /* This function frees all memory of a single fp */ 1278 static void qede_free_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp) 1279 { 1280 qede_free_mem_sb(edev, fp->sb_info); 1281 1282 if (fp->type & QEDE_FASTPATH_RX) 1283 qede_free_mem_rxq(edev, fp->rxq); 1284 1285 if (fp->type & QEDE_FASTPATH_TX) 1286 qede_free_mem_txq(edev, fp->txq); 1287 } 1288 1289 /* This function allocates all memory needed for a single fp (i.e. an entity 1290 * which contains status block, one rx queue and/or multiple per-TC tx queues. 1291 */ 1292 static int qede_alloc_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp) 1293 { 1294 int rc = 0; 1295 1296 rc = qede_alloc_mem_sb(edev, fp->sb_info, fp->id); 1297 if (rc) 1298 goto out; 1299 1300 if (fp->type & QEDE_FASTPATH_RX) { 1301 rc = qede_alloc_mem_rxq(edev, fp->rxq); 1302 if (rc) 1303 goto out; 1304 } 1305 1306 if (fp->type & QEDE_FASTPATH_XDP) { 1307 rc = qede_alloc_mem_txq(edev, fp->xdp_tx); 1308 if (rc) 1309 goto out; 1310 } 1311 1312 if (fp->type & QEDE_FASTPATH_TX) { 1313 rc = qede_alloc_mem_txq(edev, fp->txq); 1314 if (rc) 1315 goto out; 1316 } 1317 1318 out: 1319 return rc; 1320 } 1321 1322 static void qede_free_mem_load(struct qede_dev *edev) 1323 { 1324 int i; 1325 1326 for_each_queue(i) { 1327 struct qede_fastpath *fp = &edev->fp_array[i]; 1328 1329 qede_free_mem_fp(edev, fp); 1330 } 1331 } 1332 1333 /* This function allocates all qede memory at NIC load. */ 1334 static int qede_alloc_mem_load(struct qede_dev *edev) 1335 { 1336 int rc = 0, queue_id; 1337 1338 for (queue_id = 0; queue_id < QEDE_QUEUE_CNT(edev); queue_id++) { 1339 struct qede_fastpath *fp = &edev->fp_array[queue_id]; 1340 1341 rc = qede_alloc_mem_fp(edev, fp); 1342 if (rc) { 1343 DP_ERR(edev, 1344 "Failed to allocate memory for fastpath - rss id = %d\n", 1345 queue_id); 1346 qede_free_mem_load(edev); 1347 return rc; 1348 } 1349 } 1350 1351 return 0; 1352 } 1353 1354 /* This function inits fp content and resets the SB, RXQ and TXQ structures */ 1355 static void qede_init_fp(struct qede_dev *edev) 1356 { 1357 int queue_id, rxq_index = 0, txq_index = 0; 1358 struct qede_fastpath *fp; 1359 1360 for_each_queue(queue_id) { 1361 fp = &edev->fp_array[queue_id]; 1362 1363 fp->edev = edev; 1364 fp->id = queue_id; 1365 1366 if (fp->type & QEDE_FASTPATH_XDP) { 1367 fp->xdp_tx->index = QEDE_TXQ_IDX_TO_XDP(edev, 1368 rxq_index); 1369 fp->xdp_tx->is_xdp = 1; 1370 } 1371 1372 if (fp->type & QEDE_FASTPATH_RX) { 1373 fp->rxq->rxq_id = rxq_index++; 1374 1375 /* Determine how to map buffers for this queue */ 1376 if (fp->type & QEDE_FASTPATH_XDP) 1377 fp->rxq->data_direction = DMA_BIDIRECTIONAL; 1378 else 1379 fp->rxq->data_direction = DMA_FROM_DEVICE; 1380 fp->rxq->dev = &edev->pdev->dev; 1381 } 1382 1383 if (fp->type & QEDE_FASTPATH_TX) { 1384 fp->txq->index = txq_index++; 1385 if (edev->dev_info.is_legacy) 1386 fp->txq->is_legacy = 1; 1387 fp->txq->dev = &edev->pdev->dev; 1388 } 1389 1390 snprintf(fp->name, sizeof(fp->name), "%s-fp-%d", 1391 edev->ndev->name, queue_id); 1392 } 1393 1394 edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO); 1395 } 1396 1397 static int qede_set_real_num_queues(struct qede_dev *edev) 1398 { 1399 int rc = 0; 1400 1401 rc = netif_set_real_num_tx_queues(edev->ndev, QEDE_TSS_COUNT(edev)); 1402 if (rc) { 1403 DP_NOTICE(edev, "Failed to set real number of Tx queues\n"); 1404 return rc; 1405 } 1406 1407 rc = netif_set_real_num_rx_queues(edev->ndev, QEDE_RSS_COUNT(edev)); 1408 if (rc) { 1409 DP_NOTICE(edev, "Failed to set real number of Rx queues\n"); 1410 return rc; 1411 } 1412 1413 return 0; 1414 } 1415 1416 static void qede_napi_disable_remove(struct qede_dev *edev) 1417 { 1418 int i; 1419 1420 for_each_queue(i) { 1421 napi_disable(&edev->fp_array[i].napi); 1422 1423 netif_napi_del(&edev->fp_array[i].napi); 1424 } 1425 } 1426 1427 static void qede_napi_add_enable(struct qede_dev *edev) 1428 { 1429 int i; 1430 1431 /* Add NAPI objects */ 1432 for_each_queue(i) { 1433 netif_napi_add(edev->ndev, &edev->fp_array[i].napi, 1434 qede_poll, NAPI_POLL_WEIGHT); 1435 napi_enable(&edev->fp_array[i].napi); 1436 } 1437 } 1438 1439 static void qede_sync_free_irqs(struct qede_dev *edev) 1440 { 1441 int i; 1442 1443 for (i = 0; i < edev->int_info.used_cnt; i++) { 1444 if (edev->int_info.msix_cnt) { 1445 synchronize_irq(edev->int_info.msix[i].vector); 1446 free_irq(edev->int_info.msix[i].vector, 1447 &edev->fp_array[i]); 1448 } else { 1449 edev->ops->common->simd_handler_clean(edev->cdev, i); 1450 } 1451 } 1452 1453 edev->int_info.used_cnt = 0; 1454 } 1455 1456 static int qede_req_msix_irqs(struct qede_dev *edev) 1457 { 1458 int i, rc; 1459 1460 /* Sanitize number of interrupts == number of prepared RSS queues */ 1461 if (QEDE_QUEUE_CNT(edev) > edev->int_info.msix_cnt) { 1462 DP_ERR(edev, 1463 "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n", 1464 QEDE_QUEUE_CNT(edev), edev->int_info.msix_cnt); 1465 return -EINVAL; 1466 } 1467 1468 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) { 1469 rc = request_irq(edev->int_info.msix[i].vector, 1470 qede_msix_fp_int, 0, edev->fp_array[i].name, 1471 &edev->fp_array[i]); 1472 if (rc) { 1473 DP_ERR(edev, "Request fp %d irq failed\n", i); 1474 qede_sync_free_irqs(edev); 1475 return rc; 1476 } 1477 DP_VERBOSE(edev, NETIF_MSG_INTR, 1478 "Requested fp irq for %s [entry %d]. Cookie is at %p\n", 1479 edev->fp_array[i].name, i, 1480 &edev->fp_array[i]); 1481 edev->int_info.used_cnt++; 1482 } 1483 1484 return 0; 1485 } 1486 1487 static void qede_simd_fp_handler(void *cookie) 1488 { 1489 struct qede_fastpath *fp = (struct qede_fastpath *)cookie; 1490 1491 napi_schedule_irqoff(&fp->napi); 1492 } 1493 1494 static int qede_setup_irqs(struct qede_dev *edev) 1495 { 1496 int i, rc = 0; 1497 1498 /* Learn Interrupt configuration */ 1499 rc = edev->ops->common->get_fp_int(edev->cdev, &edev->int_info); 1500 if (rc) 1501 return rc; 1502 1503 if (edev->int_info.msix_cnt) { 1504 rc = qede_req_msix_irqs(edev); 1505 if (rc) 1506 return rc; 1507 edev->ndev->irq = edev->int_info.msix[0].vector; 1508 } else { 1509 const struct qed_common_ops *ops; 1510 1511 /* qed should learn receive the RSS ids and callbacks */ 1512 ops = edev->ops->common; 1513 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) 1514 ops->simd_handler_config(edev->cdev, 1515 &edev->fp_array[i], i, 1516 qede_simd_fp_handler); 1517 edev->int_info.used_cnt = QEDE_QUEUE_CNT(edev); 1518 } 1519 return 0; 1520 } 1521 1522 static int qede_drain_txq(struct qede_dev *edev, 1523 struct qede_tx_queue *txq, bool allow_drain) 1524 { 1525 int rc, cnt = 1000; 1526 1527 while (txq->sw_tx_cons != txq->sw_tx_prod) { 1528 if (!cnt) { 1529 if (allow_drain) { 1530 DP_NOTICE(edev, 1531 "Tx queue[%d] is stuck, requesting MCP to drain\n", 1532 txq->index); 1533 rc = edev->ops->common->drain(edev->cdev); 1534 if (rc) 1535 return rc; 1536 return qede_drain_txq(edev, txq, false); 1537 } 1538 DP_NOTICE(edev, 1539 "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n", 1540 txq->index, txq->sw_tx_prod, 1541 txq->sw_tx_cons); 1542 return -ENODEV; 1543 } 1544 cnt--; 1545 usleep_range(1000, 2000); 1546 barrier(); 1547 } 1548 1549 /* FW finished processing, wait for HW to transmit all tx packets */ 1550 usleep_range(1000, 2000); 1551 1552 return 0; 1553 } 1554 1555 static int qede_stop_txq(struct qede_dev *edev, 1556 struct qede_tx_queue *txq, int rss_id) 1557 { 1558 return edev->ops->q_tx_stop(edev->cdev, rss_id, txq->handle); 1559 } 1560 1561 static int qede_stop_queues(struct qede_dev *edev) 1562 { 1563 struct qed_update_vport_params *vport_update_params; 1564 struct qed_dev *cdev = edev->cdev; 1565 struct qede_fastpath *fp; 1566 int rc, i; 1567 1568 /* Disable the vport */ 1569 vport_update_params = vzalloc(sizeof(*vport_update_params)); 1570 if (!vport_update_params) 1571 return -ENOMEM; 1572 1573 vport_update_params->vport_id = 0; 1574 vport_update_params->update_vport_active_flg = 1; 1575 vport_update_params->vport_active_flg = 0; 1576 vport_update_params->update_rss_flg = 0; 1577 1578 rc = edev->ops->vport_update(cdev, vport_update_params); 1579 vfree(vport_update_params); 1580 1581 if (rc) { 1582 DP_ERR(edev, "Failed to update vport\n"); 1583 return rc; 1584 } 1585 1586 /* Flush Tx queues. If needed, request drain from MCP */ 1587 for_each_queue(i) { 1588 fp = &edev->fp_array[i]; 1589 1590 if (fp->type & QEDE_FASTPATH_TX) { 1591 rc = qede_drain_txq(edev, fp->txq, true); 1592 if (rc) 1593 return rc; 1594 } 1595 1596 if (fp->type & QEDE_FASTPATH_XDP) { 1597 rc = qede_drain_txq(edev, fp->xdp_tx, true); 1598 if (rc) 1599 return rc; 1600 } 1601 } 1602 1603 /* Stop all Queues in reverse order */ 1604 for (i = QEDE_QUEUE_CNT(edev) - 1; i >= 0; i--) { 1605 fp = &edev->fp_array[i]; 1606 1607 /* Stop the Tx Queue(s) */ 1608 if (fp->type & QEDE_FASTPATH_TX) { 1609 rc = qede_stop_txq(edev, fp->txq, i); 1610 if (rc) 1611 return rc; 1612 } 1613 1614 /* Stop the Rx Queue */ 1615 if (fp->type & QEDE_FASTPATH_RX) { 1616 rc = edev->ops->q_rx_stop(cdev, i, fp->rxq->handle); 1617 if (rc) { 1618 DP_ERR(edev, "Failed to stop RXQ #%d\n", i); 1619 return rc; 1620 } 1621 } 1622 1623 /* Stop the XDP forwarding queue */ 1624 if (fp->type & QEDE_FASTPATH_XDP) { 1625 rc = qede_stop_txq(edev, fp->xdp_tx, i); 1626 if (rc) 1627 return rc; 1628 1629 bpf_prog_put(fp->rxq->xdp_prog); 1630 } 1631 } 1632 1633 /* Stop the vport */ 1634 rc = edev->ops->vport_stop(cdev, 0); 1635 if (rc) 1636 DP_ERR(edev, "Failed to stop VPORT\n"); 1637 1638 return rc; 1639 } 1640 1641 static int qede_start_txq(struct qede_dev *edev, 1642 struct qede_fastpath *fp, 1643 struct qede_tx_queue *txq, u8 rss_id, u16 sb_idx) 1644 { 1645 dma_addr_t phys_table = qed_chain_get_pbl_phys(&txq->tx_pbl); 1646 u32 page_cnt = qed_chain_get_page_cnt(&txq->tx_pbl); 1647 struct qed_queue_start_common_params params; 1648 struct qed_txq_start_ret_params ret_params; 1649 int rc; 1650 1651 memset(¶ms, 0, sizeof(params)); 1652 memset(&ret_params, 0, sizeof(ret_params)); 1653 1654 /* Let the XDP queue share the queue-zone with one of the regular txq. 1655 * We don't really care about its coalescing. 1656 */ 1657 if (txq->is_xdp) 1658 params.queue_id = QEDE_TXQ_XDP_TO_IDX(edev, txq); 1659 else 1660 params.queue_id = txq->index; 1661 1662 params.sb = fp->sb_info->igu_sb_id; 1663 params.sb_idx = sb_idx; 1664 1665 rc = edev->ops->q_tx_start(edev->cdev, rss_id, ¶ms, phys_table, 1666 page_cnt, &ret_params); 1667 if (rc) { 1668 DP_ERR(edev, "Start TXQ #%d failed %d\n", txq->index, rc); 1669 return rc; 1670 } 1671 1672 txq->doorbell_addr = ret_params.p_doorbell; 1673 txq->handle = ret_params.p_handle; 1674 1675 /* Determine the FW consumer address associated */ 1676 txq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[sb_idx]; 1677 1678 /* Prepare the doorbell parameters */ 1679 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_DEST, DB_DEST_XCM); 1680 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD, DB_AGG_CMD_SET); 1681 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_VAL_SEL, 1682 DQ_XCM_ETH_TX_BD_PROD_CMD); 1683 txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD; 1684 1685 return rc; 1686 } 1687 1688 static int qede_start_queues(struct qede_dev *edev, bool clear_stats) 1689 { 1690 int vlan_removal_en = 1; 1691 struct qed_dev *cdev = edev->cdev; 1692 struct qed_dev_info *qed_info = &edev->dev_info.common; 1693 struct qed_update_vport_params *vport_update_params; 1694 struct qed_queue_start_common_params q_params; 1695 struct qed_start_vport_params start = {0}; 1696 int rc, i; 1697 1698 if (!edev->num_queues) { 1699 DP_ERR(edev, 1700 "Cannot update V-VPORT as active as there are no Rx queues\n"); 1701 return -EINVAL; 1702 } 1703 1704 vport_update_params = vzalloc(sizeof(*vport_update_params)); 1705 if (!vport_update_params) 1706 return -ENOMEM; 1707 1708 start.handle_ptp_pkts = !!(edev->ptp); 1709 start.gro_enable = !edev->gro_disable; 1710 start.mtu = edev->ndev->mtu; 1711 start.vport_id = 0; 1712 start.drop_ttl0 = true; 1713 start.remove_inner_vlan = vlan_removal_en; 1714 start.clear_stats = clear_stats; 1715 1716 rc = edev->ops->vport_start(cdev, &start); 1717 1718 if (rc) { 1719 DP_ERR(edev, "Start V-PORT failed %d\n", rc); 1720 goto out; 1721 } 1722 1723 DP_VERBOSE(edev, NETIF_MSG_IFUP, 1724 "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n", 1725 start.vport_id, edev->ndev->mtu + 0xe, vlan_removal_en); 1726 1727 for_each_queue(i) { 1728 struct qede_fastpath *fp = &edev->fp_array[i]; 1729 dma_addr_t p_phys_table; 1730 u32 page_cnt; 1731 1732 if (fp->type & QEDE_FASTPATH_RX) { 1733 struct qed_rxq_start_ret_params ret_params; 1734 struct qede_rx_queue *rxq = fp->rxq; 1735 __le16 *val; 1736 1737 memset(&ret_params, 0, sizeof(ret_params)); 1738 memset(&q_params, 0, sizeof(q_params)); 1739 q_params.queue_id = rxq->rxq_id; 1740 q_params.vport_id = 0; 1741 q_params.sb = fp->sb_info->igu_sb_id; 1742 q_params.sb_idx = RX_PI; 1743 1744 p_phys_table = 1745 qed_chain_get_pbl_phys(&rxq->rx_comp_ring); 1746 page_cnt = qed_chain_get_page_cnt(&rxq->rx_comp_ring); 1747 1748 rc = edev->ops->q_rx_start(cdev, i, &q_params, 1749 rxq->rx_buf_size, 1750 rxq->rx_bd_ring.p_phys_addr, 1751 p_phys_table, 1752 page_cnt, &ret_params); 1753 if (rc) { 1754 DP_ERR(edev, "Start RXQ #%d failed %d\n", i, 1755 rc); 1756 goto out; 1757 } 1758 1759 /* Use the return parameters */ 1760 rxq->hw_rxq_prod_addr = ret_params.p_prod; 1761 rxq->handle = ret_params.p_handle; 1762 1763 val = &fp->sb_info->sb_virt->pi_array[RX_PI]; 1764 rxq->hw_cons_ptr = val; 1765 1766 qede_update_rx_prod(edev, rxq); 1767 } 1768 1769 if (fp->type & QEDE_FASTPATH_XDP) { 1770 rc = qede_start_txq(edev, fp, fp->xdp_tx, i, XDP_PI); 1771 if (rc) 1772 goto out; 1773 1774 fp->rxq->xdp_prog = bpf_prog_add(edev->xdp_prog, 1); 1775 if (IS_ERR(fp->rxq->xdp_prog)) { 1776 rc = PTR_ERR(fp->rxq->xdp_prog); 1777 fp->rxq->xdp_prog = NULL; 1778 goto out; 1779 } 1780 } 1781 1782 if (fp->type & QEDE_FASTPATH_TX) { 1783 rc = qede_start_txq(edev, fp, fp->txq, i, TX_PI(0)); 1784 if (rc) 1785 goto out; 1786 } 1787 } 1788 1789 /* Prepare and send the vport enable */ 1790 vport_update_params->vport_id = start.vport_id; 1791 vport_update_params->update_vport_active_flg = 1; 1792 vport_update_params->vport_active_flg = 1; 1793 1794 if ((qed_info->mf_mode == QED_MF_NPAR || pci_num_vf(edev->pdev)) && 1795 qed_info->tx_switching) { 1796 vport_update_params->update_tx_switching_flg = 1; 1797 vport_update_params->tx_switching_flg = 1; 1798 } 1799 1800 qede_fill_rss_params(edev, &vport_update_params->rss_params, 1801 &vport_update_params->update_rss_flg); 1802 1803 rc = edev->ops->vport_update(cdev, vport_update_params); 1804 if (rc) 1805 DP_ERR(edev, "Update V-PORT failed %d\n", rc); 1806 1807 out: 1808 vfree(vport_update_params); 1809 return rc; 1810 } 1811 1812 enum qede_unload_mode { 1813 QEDE_UNLOAD_NORMAL, 1814 }; 1815 1816 static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode, 1817 bool is_locked) 1818 { 1819 struct qed_link_params link_params; 1820 int rc; 1821 1822 DP_INFO(edev, "Starting qede unload\n"); 1823 1824 if (!is_locked) 1825 __qede_lock(edev); 1826 1827 qede_roce_dev_event_close(edev); 1828 edev->state = QEDE_STATE_CLOSED; 1829 1830 qede_ptp_stop(edev); 1831 1832 /* Close OS Tx */ 1833 netif_tx_disable(edev->ndev); 1834 netif_carrier_off(edev->ndev); 1835 1836 /* Reset the link */ 1837 memset(&link_params, 0, sizeof(link_params)); 1838 link_params.link_up = false; 1839 edev->ops->common->set_link(edev->cdev, &link_params); 1840 rc = qede_stop_queues(edev); 1841 if (rc) { 1842 qede_sync_free_irqs(edev); 1843 goto out; 1844 } 1845 1846 DP_INFO(edev, "Stopped Queues\n"); 1847 1848 qede_vlan_mark_nonconfigured(edev); 1849 edev->ops->fastpath_stop(edev->cdev); 1850 1851 /* Release the interrupts */ 1852 qede_sync_free_irqs(edev); 1853 edev->ops->common->set_fp_int(edev->cdev, 0); 1854 1855 qede_napi_disable_remove(edev); 1856 1857 qede_free_mem_load(edev); 1858 qede_free_fp_array(edev); 1859 1860 out: 1861 if (!is_locked) 1862 __qede_unlock(edev); 1863 DP_INFO(edev, "Ending qede unload\n"); 1864 } 1865 1866 enum qede_load_mode { 1867 QEDE_LOAD_NORMAL, 1868 QEDE_LOAD_RELOAD, 1869 }; 1870 1871 static int qede_load(struct qede_dev *edev, enum qede_load_mode mode, 1872 bool is_locked) 1873 { 1874 struct qed_link_params link_params; 1875 int rc; 1876 1877 DP_INFO(edev, "Starting qede load\n"); 1878 1879 if (!is_locked) 1880 __qede_lock(edev); 1881 1882 rc = qede_set_num_queues(edev); 1883 if (rc) 1884 goto out; 1885 1886 rc = qede_alloc_fp_array(edev); 1887 if (rc) 1888 goto out; 1889 1890 qede_init_fp(edev); 1891 1892 rc = qede_alloc_mem_load(edev); 1893 if (rc) 1894 goto err1; 1895 DP_INFO(edev, "Allocated %d Rx, %d Tx queues\n", 1896 QEDE_RSS_COUNT(edev), QEDE_TSS_COUNT(edev)); 1897 1898 rc = qede_set_real_num_queues(edev); 1899 if (rc) 1900 goto err2; 1901 1902 qede_napi_add_enable(edev); 1903 DP_INFO(edev, "Napi added and enabled\n"); 1904 1905 rc = qede_setup_irqs(edev); 1906 if (rc) 1907 goto err3; 1908 DP_INFO(edev, "Setup IRQs succeeded\n"); 1909 1910 rc = qede_start_queues(edev, mode != QEDE_LOAD_RELOAD); 1911 if (rc) 1912 goto err4; 1913 DP_INFO(edev, "Start VPORT, RXQ and TXQ succeeded\n"); 1914 1915 /* Add primary mac and set Rx filters */ 1916 ether_addr_copy(edev->primary_mac, edev->ndev->dev_addr); 1917 1918 /* Program un-configured VLANs */ 1919 qede_configure_vlan_filters(edev); 1920 1921 /* Ask for link-up using current configuration */ 1922 memset(&link_params, 0, sizeof(link_params)); 1923 link_params.link_up = true; 1924 edev->ops->common->set_link(edev->cdev, &link_params); 1925 1926 qede_roce_dev_event_open(edev); 1927 1928 qede_ptp_start(edev, (mode == QEDE_LOAD_NORMAL)); 1929 1930 edev->state = QEDE_STATE_OPEN; 1931 1932 DP_INFO(edev, "Ending successfully qede load\n"); 1933 1934 1935 goto out; 1936 err4: 1937 qede_sync_free_irqs(edev); 1938 memset(&edev->int_info.msix_cnt, 0, sizeof(struct qed_int_info)); 1939 err3: 1940 qede_napi_disable_remove(edev); 1941 err2: 1942 qede_free_mem_load(edev); 1943 err1: 1944 edev->ops->common->set_fp_int(edev->cdev, 0); 1945 qede_free_fp_array(edev); 1946 edev->num_queues = 0; 1947 edev->fp_num_tx = 0; 1948 edev->fp_num_rx = 0; 1949 out: 1950 if (!is_locked) 1951 __qede_unlock(edev); 1952 1953 return rc; 1954 } 1955 1956 /* 'func' should be able to run between unload and reload assuming interface 1957 * is actually running, or afterwards in case it's currently DOWN. 1958 */ 1959 void qede_reload(struct qede_dev *edev, 1960 struct qede_reload_args *args, bool is_locked) 1961 { 1962 if (!is_locked) 1963 __qede_lock(edev); 1964 1965 /* Since qede_lock is held, internal state wouldn't change even 1966 * if netdev state would start transitioning. Check whether current 1967 * internal configuration indicates device is up, then reload. 1968 */ 1969 if (edev->state == QEDE_STATE_OPEN) { 1970 qede_unload(edev, QEDE_UNLOAD_NORMAL, true); 1971 if (args) 1972 args->func(edev, args); 1973 qede_load(edev, QEDE_LOAD_RELOAD, true); 1974 1975 /* Since no one is going to do it for us, re-configure */ 1976 qede_config_rx_mode(edev->ndev); 1977 } else if (args) { 1978 args->func(edev, args); 1979 } 1980 1981 if (!is_locked) 1982 __qede_unlock(edev); 1983 } 1984 1985 /* called with rtnl_lock */ 1986 static int qede_open(struct net_device *ndev) 1987 { 1988 struct qede_dev *edev = netdev_priv(ndev); 1989 int rc; 1990 1991 netif_carrier_off(ndev); 1992 1993 edev->ops->common->set_power_state(edev->cdev, PCI_D0); 1994 1995 rc = qede_load(edev, QEDE_LOAD_NORMAL, false); 1996 if (rc) 1997 return rc; 1998 1999 udp_tunnel_get_rx_info(ndev); 2000 2001 edev->ops->common->update_drv_state(edev->cdev, true); 2002 2003 return 0; 2004 } 2005 2006 static int qede_close(struct net_device *ndev) 2007 { 2008 struct qede_dev *edev = netdev_priv(ndev); 2009 2010 qede_unload(edev, QEDE_UNLOAD_NORMAL, false); 2011 2012 edev->ops->common->update_drv_state(edev->cdev, false); 2013 2014 return 0; 2015 } 2016 2017 static void qede_link_update(void *dev, struct qed_link_output *link) 2018 { 2019 struct qede_dev *edev = dev; 2020 2021 if (!netif_running(edev->ndev)) { 2022 DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not running\n"); 2023 return; 2024 } 2025 2026 if (link->link_up) { 2027 if (!netif_carrier_ok(edev->ndev)) { 2028 DP_NOTICE(edev, "Link is up\n"); 2029 netif_tx_start_all_queues(edev->ndev); 2030 netif_carrier_on(edev->ndev); 2031 } 2032 } else { 2033 if (netif_carrier_ok(edev->ndev)) { 2034 DP_NOTICE(edev, "Link is down\n"); 2035 netif_tx_disable(edev->ndev); 2036 netif_carrier_off(edev->ndev); 2037 } 2038 } 2039 } 2040