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 "qede.h" 64 #include "qede_ptp.h" 65 66 static char version[] = 67 "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION "\n"; 68 69 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Ethernet Driver"); 70 MODULE_LICENSE("GPL"); 71 MODULE_VERSION(DRV_MODULE_VERSION); 72 73 static uint debug; 74 module_param(debug, uint, 0); 75 MODULE_PARM_DESC(debug, " Default debug msglevel"); 76 77 static const struct qed_eth_ops *qed_ops; 78 79 #define CHIP_NUM_57980S_40 0x1634 80 #define CHIP_NUM_57980S_10 0x1666 81 #define CHIP_NUM_57980S_MF 0x1636 82 #define CHIP_NUM_57980S_100 0x1644 83 #define CHIP_NUM_57980S_50 0x1654 84 #define CHIP_NUM_57980S_25 0x1656 85 #define CHIP_NUM_57980S_IOV 0x1664 86 #define CHIP_NUM_AH 0x8070 87 #define CHIP_NUM_AH_IOV 0x8090 88 89 #ifndef PCI_DEVICE_ID_NX2_57980E 90 #define PCI_DEVICE_ID_57980S_40 CHIP_NUM_57980S_40 91 #define PCI_DEVICE_ID_57980S_10 CHIP_NUM_57980S_10 92 #define PCI_DEVICE_ID_57980S_MF CHIP_NUM_57980S_MF 93 #define PCI_DEVICE_ID_57980S_100 CHIP_NUM_57980S_100 94 #define PCI_DEVICE_ID_57980S_50 CHIP_NUM_57980S_50 95 #define PCI_DEVICE_ID_57980S_25 CHIP_NUM_57980S_25 96 #define PCI_DEVICE_ID_57980S_IOV CHIP_NUM_57980S_IOV 97 #define PCI_DEVICE_ID_AH CHIP_NUM_AH 98 #define PCI_DEVICE_ID_AH_IOV CHIP_NUM_AH_IOV 99 100 #endif 101 102 enum qede_pci_private { 103 QEDE_PRIVATE_PF, 104 QEDE_PRIVATE_VF 105 }; 106 107 static const struct pci_device_id qede_pci_tbl[] = { 108 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_40), QEDE_PRIVATE_PF}, 109 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_10), QEDE_PRIVATE_PF}, 110 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_MF), QEDE_PRIVATE_PF}, 111 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_100), QEDE_PRIVATE_PF}, 112 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_50), QEDE_PRIVATE_PF}, 113 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_25), QEDE_PRIVATE_PF}, 114 #ifdef CONFIG_QED_SRIOV 115 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_IOV), QEDE_PRIVATE_VF}, 116 #endif 117 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_AH), QEDE_PRIVATE_PF}, 118 #ifdef CONFIG_QED_SRIOV 119 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_AH_IOV), QEDE_PRIVATE_VF}, 120 #endif 121 { 0 } 122 }; 123 124 MODULE_DEVICE_TABLE(pci, qede_pci_tbl); 125 126 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id); 127 128 #define TX_TIMEOUT (5 * HZ) 129 130 /* Utilize last protocol index for XDP */ 131 #define XDP_PI 11 132 133 static void qede_remove(struct pci_dev *pdev); 134 static void qede_shutdown(struct pci_dev *pdev); 135 static void qede_link_update(void *dev, struct qed_link_output *link); 136 137 /* The qede lock is used to protect driver state change and driver flows that 138 * are not reentrant. 139 */ 140 void __qede_lock(struct qede_dev *edev) 141 { 142 mutex_lock(&edev->qede_lock); 143 } 144 145 void __qede_unlock(struct qede_dev *edev) 146 { 147 mutex_unlock(&edev->qede_lock); 148 } 149 150 #ifdef CONFIG_QED_SRIOV 151 static int qede_set_vf_vlan(struct net_device *ndev, int vf, u16 vlan, u8 qos, 152 __be16 vlan_proto) 153 { 154 struct qede_dev *edev = netdev_priv(ndev); 155 156 if (vlan > 4095) { 157 DP_NOTICE(edev, "Illegal vlan value %d\n", vlan); 158 return -EINVAL; 159 } 160 161 if (vlan_proto != htons(ETH_P_8021Q)) 162 return -EPROTONOSUPPORT; 163 164 DP_VERBOSE(edev, QED_MSG_IOV, "Setting Vlan 0x%04x to VF [%d]\n", 165 vlan, vf); 166 167 return edev->ops->iov->set_vlan(edev->cdev, vlan, vf); 168 } 169 170 static int qede_set_vf_mac(struct net_device *ndev, int vfidx, u8 *mac) 171 { 172 struct qede_dev *edev = netdev_priv(ndev); 173 174 DP_VERBOSE(edev, QED_MSG_IOV, 175 "Setting MAC %02x:%02x:%02x:%02x:%02x:%02x to VF [%d]\n", 176 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], vfidx); 177 178 if (!is_valid_ether_addr(mac)) { 179 DP_VERBOSE(edev, QED_MSG_IOV, "MAC address isn't valid\n"); 180 return -EINVAL; 181 } 182 183 return edev->ops->iov->set_mac(edev->cdev, mac, vfidx); 184 } 185 186 static int qede_sriov_configure(struct pci_dev *pdev, int num_vfs_param) 187 { 188 struct qede_dev *edev = netdev_priv(pci_get_drvdata(pdev)); 189 struct qed_dev_info *qed_info = &edev->dev_info.common; 190 struct qed_update_vport_params *vport_params; 191 int rc; 192 193 vport_params = vzalloc(sizeof(*vport_params)); 194 if (!vport_params) 195 return -ENOMEM; 196 DP_VERBOSE(edev, QED_MSG_IOV, "Requested %d VFs\n", num_vfs_param); 197 198 rc = edev->ops->iov->configure(edev->cdev, num_vfs_param); 199 200 /* Enable/Disable Tx switching for PF */ 201 if ((rc == num_vfs_param) && netif_running(edev->ndev) && 202 qed_info->mf_mode != QED_MF_NPAR && qed_info->tx_switching) { 203 vport_params->vport_id = 0; 204 vport_params->update_tx_switching_flg = 1; 205 vport_params->tx_switching_flg = num_vfs_param ? 1 : 0; 206 edev->ops->vport_update(edev->cdev, vport_params); 207 } 208 209 vfree(vport_params); 210 return rc; 211 } 212 #endif 213 214 static struct pci_driver qede_pci_driver = { 215 .name = "qede", 216 .id_table = qede_pci_tbl, 217 .probe = qede_probe, 218 .remove = qede_remove, 219 .shutdown = qede_shutdown, 220 #ifdef CONFIG_QED_SRIOV 221 .sriov_configure = qede_sriov_configure, 222 #endif 223 }; 224 225 static struct qed_eth_cb_ops qede_ll_ops = { 226 { 227 #ifdef CONFIG_RFS_ACCEL 228 .arfs_filter_op = qede_arfs_filter_op, 229 #endif 230 .link_update = qede_link_update, 231 }, 232 .force_mac = qede_force_mac, 233 .ports_update = qede_udp_ports_update, 234 }; 235 236 static int qede_netdev_event(struct notifier_block *this, unsigned long event, 237 void *ptr) 238 { 239 struct net_device *ndev = netdev_notifier_info_to_dev(ptr); 240 struct ethtool_drvinfo drvinfo; 241 struct qede_dev *edev; 242 243 if (event != NETDEV_CHANGENAME && event != NETDEV_CHANGEADDR) 244 goto done; 245 246 /* Check whether this is a qede device */ 247 if (!ndev || !ndev->ethtool_ops || !ndev->ethtool_ops->get_drvinfo) 248 goto done; 249 250 memset(&drvinfo, 0, sizeof(drvinfo)); 251 ndev->ethtool_ops->get_drvinfo(ndev, &drvinfo); 252 if (strcmp(drvinfo.driver, "qede")) 253 goto done; 254 edev = netdev_priv(ndev); 255 256 switch (event) { 257 case NETDEV_CHANGENAME: 258 /* Notify qed of the name change */ 259 if (!edev->ops || !edev->ops->common) 260 goto done; 261 edev->ops->common->set_name(edev->cdev, edev->ndev->name); 262 break; 263 case NETDEV_CHANGEADDR: 264 edev = netdev_priv(ndev); 265 qede_rdma_event_changeaddr(edev); 266 break; 267 } 268 269 done: 270 return NOTIFY_DONE; 271 } 272 273 static struct notifier_block qede_netdev_notifier = { 274 .notifier_call = qede_netdev_event, 275 }; 276 277 static 278 int __init qede_init(void) 279 { 280 int ret; 281 282 pr_info("qede_init: %s\n", version); 283 284 qed_ops = qed_get_eth_ops(); 285 if (!qed_ops) { 286 pr_notice("Failed to get qed ethtool operations\n"); 287 return -EINVAL; 288 } 289 290 /* Must register notifier before pci ops, since we might miss 291 * interface rename after pci probe and netdev registeration. 292 */ 293 ret = register_netdevice_notifier(&qede_netdev_notifier); 294 if (ret) { 295 pr_notice("Failed to register netdevice_notifier\n"); 296 qed_put_eth_ops(); 297 return -EINVAL; 298 } 299 300 ret = pci_register_driver(&qede_pci_driver); 301 if (ret) { 302 pr_notice("Failed to register driver\n"); 303 unregister_netdevice_notifier(&qede_netdev_notifier); 304 qed_put_eth_ops(); 305 return -EINVAL; 306 } 307 308 return 0; 309 } 310 311 static void __exit qede_cleanup(void) 312 { 313 if (debug & QED_LOG_INFO_MASK) 314 pr_info("qede_cleanup called\n"); 315 316 unregister_netdevice_notifier(&qede_netdev_notifier); 317 pci_unregister_driver(&qede_pci_driver); 318 qed_put_eth_ops(); 319 } 320 321 module_init(qede_init); 322 module_exit(qede_cleanup); 323 324 static int qede_open(struct net_device *ndev); 325 static int qede_close(struct net_device *ndev); 326 327 void qede_fill_by_demand_stats(struct qede_dev *edev) 328 { 329 struct qede_stats_common *p_common = &edev->stats.common; 330 struct qed_eth_stats stats; 331 332 edev->ops->get_vport_stats(edev->cdev, &stats); 333 334 p_common->no_buff_discards = stats.common.no_buff_discards; 335 p_common->packet_too_big_discard = stats.common.packet_too_big_discard; 336 p_common->ttl0_discard = stats.common.ttl0_discard; 337 p_common->rx_ucast_bytes = stats.common.rx_ucast_bytes; 338 p_common->rx_mcast_bytes = stats.common.rx_mcast_bytes; 339 p_common->rx_bcast_bytes = stats.common.rx_bcast_bytes; 340 p_common->rx_ucast_pkts = stats.common.rx_ucast_pkts; 341 p_common->rx_mcast_pkts = stats.common.rx_mcast_pkts; 342 p_common->rx_bcast_pkts = stats.common.rx_bcast_pkts; 343 p_common->mftag_filter_discards = stats.common.mftag_filter_discards; 344 p_common->mac_filter_discards = stats.common.mac_filter_discards; 345 346 p_common->tx_ucast_bytes = stats.common.tx_ucast_bytes; 347 p_common->tx_mcast_bytes = stats.common.tx_mcast_bytes; 348 p_common->tx_bcast_bytes = stats.common.tx_bcast_bytes; 349 p_common->tx_ucast_pkts = stats.common.tx_ucast_pkts; 350 p_common->tx_mcast_pkts = stats.common.tx_mcast_pkts; 351 p_common->tx_bcast_pkts = stats.common.tx_bcast_pkts; 352 p_common->tx_err_drop_pkts = stats.common.tx_err_drop_pkts; 353 p_common->coalesced_pkts = stats.common.tpa_coalesced_pkts; 354 p_common->coalesced_events = stats.common.tpa_coalesced_events; 355 p_common->coalesced_aborts_num = stats.common.tpa_aborts_num; 356 p_common->non_coalesced_pkts = stats.common.tpa_not_coalesced_pkts; 357 p_common->coalesced_bytes = stats.common.tpa_coalesced_bytes; 358 359 p_common->rx_64_byte_packets = stats.common.rx_64_byte_packets; 360 p_common->rx_65_to_127_byte_packets = 361 stats.common.rx_65_to_127_byte_packets; 362 p_common->rx_128_to_255_byte_packets = 363 stats.common.rx_128_to_255_byte_packets; 364 p_common->rx_256_to_511_byte_packets = 365 stats.common.rx_256_to_511_byte_packets; 366 p_common->rx_512_to_1023_byte_packets = 367 stats.common.rx_512_to_1023_byte_packets; 368 p_common->rx_1024_to_1518_byte_packets = 369 stats.common.rx_1024_to_1518_byte_packets; 370 p_common->rx_crc_errors = stats.common.rx_crc_errors; 371 p_common->rx_mac_crtl_frames = stats.common.rx_mac_crtl_frames; 372 p_common->rx_pause_frames = stats.common.rx_pause_frames; 373 p_common->rx_pfc_frames = stats.common.rx_pfc_frames; 374 p_common->rx_align_errors = stats.common.rx_align_errors; 375 p_common->rx_carrier_errors = stats.common.rx_carrier_errors; 376 p_common->rx_oversize_packets = stats.common.rx_oversize_packets; 377 p_common->rx_jabbers = stats.common.rx_jabbers; 378 p_common->rx_undersize_packets = stats.common.rx_undersize_packets; 379 p_common->rx_fragments = stats.common.rx_fragments; 380 p_common->tx_64_byte_packets = stats.common.tx_64_byte_packets; 381 p_common->tx_65_to_127_byte_packets = 382 stats.common.tx_65_to_127_byte_packets; 383 p_common->tx_128_to_255_byte_packets = 384 stats.common.tx_128_to_255_byte_packets; 385 p_common->tx_256_to_511_byte_packets = 386 stats.common.tx_256_to_511_byte_packets; 387 p_common->tx_512_to_1023_byte_packets = 388 stats.common.tx_512_to_1023_byte_packets; 389 p_common->tx_1024_to_1518_byte_packets = 390 stats.common.tx_1024_to_1518_byte_packets; 391 p_common->tx_pause_frames = stats.common.tx_pause_frames; 392 p_common->tx_pfc_frames = stats.common.tx_pfc_frames; 393 p_common->brb_truncates = stats.common.brb_truncates; 394 p_common->brb_discards = stats.common.brb_discards; 395 p_common->tx_mac_ctrl_frames = stats.common.tx_mac_ctrl_frames; 396 397 if (QEDE_IS_BB(edev)) { 398 struct qede_stats_bb *p_bb = &edev->stats.bb; 399 400 p_bb->rx_1519_to_1522_byte_packets = 401 stats.bb.rx_1519_to_1522_byte_packets; 402 p_bb->rx_1519_to_2047_byte_packets = 403 stats.bb.rx_1519_to_2047_byte_packets; 404 p_bb->rx_2048_to_4095_byte_packets = 405 stats.bb.rx_2048_to_4095_byte_packets; 406 p_bb->rx_4096_to_9216_byte_packets = 407 stats.bb.rx_4096_to_9216_byte_packets; 408 p_bb->rx_9217_to_16383_byte_packets = 409 stats.bb.rx_9217_to_16383_byte_packets; 410 p_bb->tx_1519_to_2047_byte_packets = 411 stats.bb.tx_1519_to_2047_byte_packets; 412 p_bb->tx_2048_to_4095_byte_packets = 413 stats.bb.tx_2048_to_4095_byte_packets; 414 p_bb->tx_4096_to_9216_byte_packets = 415 stats.bb.tx_4096_to_9216_byte_packets; 416 p_bb->tx_9217_to_16383_byte_packets = 417 stats.bb.tx_9217_to_16383_byte_packets; 418 p_bb->tx_lpi_entry_count = stats.bb.tx_lpi_entry_count; 419 p_bb->tx_total_collisions = stats.bb.tx_total_collisions; 420 } else { 421 struct qede_stats_ah *p_ah = &edev->stats.ah; 422 423 p_ah->rx_1519_to_max_byte_packets = 424 stats.ah.rx_1519_to_max_byte_packets; 425 p_ah->tx_1519_to_max_byte_packets = 426 stats.ah.tx_1519_to_max_byte_packets; 427 } 428 } 429 430 static void qede_get_stats64(struct net_device *dev, 431 struct rtnl_link_stats64 *stats) 432 { 433 struct qede_dev *edev = netdev_priv(dev); 434 struct qede_stats_common *p_common; 435 436 qede_fill_by_demand_stats(edev); 437 p_common = &edev->stats.common; 438 439 stats->rx_packets = p_common->rx_ucast_pkts + p_common->rx_mcast_pkts + 440 p_common->rx_bcast_pkts; 441 stats->tx_packets = p_common->tx_ucast_pkts + p_common->tx_mcast_pkts + 442 p_common->tx_bcast_pkts; 443 444 stats->rx_bytes = p_common->rx_ucast_bytes + p_common->rx_mcast_bytes + 445 p_common->rx_bcast_bytes; 446 stats->tx_bytes = p_common->tx_ucast_bytes + p_common->tx_mcast_bytes + 447 p_common->tx_bcast_bytes; 448 449 stats->tx_errors = p_common->tx_err_drop_pkts; 450 stats->multicast = p_common->rx_mcast_pkts + p_common->rx_bcast_pkts; 451 452 stats->rx_fifo_errors = p_common->no_buff_discards; 453 454 if (QEDE_IS_BB(edev)) 455 stats->collisions = edev->stats.bb.tx_total_collisions; 456 stats->rx_crc_errors = p_common->rx_crc_errors; 457 stats->rx_frame_errors = p_common->rx_align_errors; 458 } 459 460 #ifdef CONFIG_QED_SRIOV 461 static int qede_get_vf_config(struct net_device *dev, int vfidx, 462 struct ifla_vf_info *ivi) 463 { 464 struct qede_dev *edev = netdev_priv(dev); 465 466 if (!edev->ops) 467 return -EINVAL; 468 469 return edev->ops->iov->get_config(edev->cdev, vfidx, ivi); 470 } 471 472 static int qede_set_vf_rate(struct net_device *dev, int vfidx, 473 int min_tx_rate, int max_tx_rate) 474 { 475 struct qede_dev *edev = netdev_priv(dev); 476 477 return edev->ops->iov->set_rate(edev->cdev, vfidx, min_tx_rate, 478 max_tx_rate); 479 } 480 481 static int qede_set_vf_spoofchk(struct net_device *dev, int vfidx, bool val) 482 { 483 struct qede_dev *edev = netdev_priv(dev); 484 485 if (!edev->ops) 486 return -EINVAL; 487 488 return edev->ops->iov->set_spoof(edev->cdev, vfidx, val); 489 } 490 491 static int qede_set_vf_link_state(struct net_device *dev, int vfidx, 492 int link_state) 493 { 494 struct qede_dev *edev = netdev_priv(dev); 495 496 if (!edev->ops) 497 return -EINVAL; 498 499 return edev->ops->iov->set_link_state(edev->cdev, vfidx, link_state); 500 } 501 502 static int qede_set_vf_trust(struct net_device *dev, int vfidx, bool setting) 503 { 504 struct qede_dev *edev = netdev_priv(dev); 505 506 if (!edev->ops) 507 return -EINVAL; 508 509 return edev->ops->iov->set_trust(edev->cdev, vfidx, setting); 510 } 511 #endif 512 513 static int qede_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 514 { 515 struct qede_dev *edev = netdev_priv(dev); 516 517 if (!netif_running(dev)) 518 return -EAGAIN; 519 520 switch (cmd) { 521 case SIOCSHWTSTAMP: 522 return qede_ptp_hw_ts(edev, ifr); 523 default: 524 DP_VERBOSE(edev, QED_MSG_DEBUG, 525 "default IOCTL cmd 0x%x\n", cmd); 526 return -EOPNOTSUPP; 527 } 528 529 return 0; 530 } 531 532 static const struct net_device_ops qede_netdev_ops = { 533 .ndo_open = qede_open, 534 .ndo_stop = qede_close, 535 .ndo_start_xmit = qede_start_xmit, 536 .ndo_set_rx_mode = qede_set_rx_mode, 537 .ndo_set_mac_address = qede_set_mac_addr, 538 .ndo_validate_addr = eth_validate_addr, 539 .ndo_change_mtu = qede_change_mtu, 540 .ndo_do_ioctl = qede_ioctl, 541 #ifdef CONFIG_QED_SRIOV 542 .ndo_set_vf_mac = qede_set_vf_mac, 543 .ndo_set_vf_vlan = qede_set_vf_vlan, 544 .ndo_set_vf_trust = qede_set_vf_trust, 545 #endif 546 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid, 547 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid, 548 .ndo_fix_features = qede_fix_features, 549 .ndo_set_features = qede_set_features, 550 .ndo_get_stats64 = qede_get_stats64, 551 #ifdef CONFIG_QED_SRIOV 552 .ndo_set_vf_link_state = qede_set_vf_link_state, 553 .ndo_set_vf_spoofchk = qede_set_vf_spoofchk, 554 .ndo_get_vf_config = qede_get_vf_config, 555 .ndo_set_vf_rate = qede_set_vf_rate, 556 #endif 557 .ndo_udp_tunnel_add = qede_udp_tunnel_add, 558 .ndo_udp_tunnel_del = qede_udp_tunnel_del, 559 .ndo_features_check = qede_features_check, 560 .ndo_bpf = qede_xdp, 561 #ifdef CONFIG_RFS_ACCEL 562 .ndo_rx_flow_steer = qede_rx_flow_steer, 563 #endif 564 }; 565 566 static const struct net_device_ops qede_netdev_vf_ops = { 567 .ndo_open = qede_open, 568 .ndo_stop = qede_close, 569 .ndo_start_xmit = qede_start_xmit, 570 .ndo_set_rx_mode = qede_set_rx_mode, 571 .ndo_set_mac_address = qede_set_mac_addr, 572 .ndo_validate_addr = eth_validate_addr, 573 .ndo_change_mtu = qede_change_mtu, 574 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid, 575 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid, 576 .ndo_fix_features = qede_fix_features, 577 .ndo_set_features = qede_set_features, 578 .ndo_get_stats64 = qede_get_stats64, 579 .ndo_udp_tunnel_add = qede_udp_tunnel_add, 580 .ndo_udp_tunnel_del = qede_udp_tunnel_del, 581 .ndo_features_check = qede_features_check, 582 }; 583 584 static const struct net_device_ops qede_netdev_vf_xdp_ops = { 585 .ndo_open = qede_open, 586 .ndo_stop = qede_close, 587 .ndo_start_xmit = qede_start_xmit, 588 .ndo_set_rx_mode = qede_set_rx_mode, 589 .ndo_set_mac_address = qede_set_mac_addr, 590 .ndo_validate_addr = eth_validate_addr, 591 .ndo_change_mtu = qede_change_mtu, 592 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid, 593 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid, 594 .ndo_fix_features = qede_fix_features, 595 .ndo_set_features = qede_set_features, 596 .ndo_get_stats64 = qede_get_stats64, 597 .ndo_udp_tunnel_add = qede_udp_tunnel_add, 598 .ndo_udp_tunnel_del = qede_udp_tunnel_del, 599 .ndo_features_check = qede_features_check, 600 .ndo_bpf = qede_xdp, 601 }; 602 603 /* ------------------------------------------------------------------------- 604 * START OF PROBE / REMOVE 605 * ------------------------------------------------------------------------- 606 */ 607 608 static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev, 609 struct pci_dev *pdev, 610 struct qed_dev_eth_info *info, 611 u32 dp_module, u8 dp_level) 612 { 613 struct net_device *ndev; 614 struct qede_dev *edev; 615 616 ndev = alloc_etherdev_mqs(sizeof(*edev), 617 info->num_queues, info->num_queues); 618 if (!ndev) { 619 pr_err("etherdev allocation failed\n"); 620 return NULL; 621 } 622 623 edev = netdev_priv(ndev); 624 edev->ndev = ndev; 625 edev->cdev = cdev; 626 edev->pdev = pdev; 627 edev->dp_module = dp_module; 628 edev->dp_level = dp_level; 629 edev->ops = qed_ops; 630 edev->q_num_rx_buffers = NUM_RX_BDS_DEF; 631 edev->q_num_tx_buffers = NUM_TX_BDS_DEF; 632 633 DP_INFO(edev, "Allocated netdev with %d tx queues and %d rx queues\n", 634 info->num_queues, info->num_queues); 635 636 SET_NETDEV_DEV(ndev, &pdev->dev); 637 638 memset(&edev->stats, 0, sizeof(edev->stats)); 639 memcpy(&edev->dev_info, info, sizeof(*info)); 640 641 /* As ethtool doesn't have the ability to show WoL behavior as 642 * 'default', if device supports it declare it's enabled. 643 */ 644 if (edev->dev_info.common.wol_support) 645 edev->wol_enabled = true; 646 647 INIT_LIST_HEAD(&edev->vlan_list); 648 649 return edev; 650 } 651 652 static void qede_init_ndev(struct qede_dev *edev) 653 { 654 struct net_device *ndev = edev->ndev; 655 struct pci_dev *pdev = edev->pdev; 656 bool udp_tunnel_enable = false; 657 netdev_features_t hw_features; 658 659 pci_set_drvdata(pdev, ndev); 660 661 ndev->mem_start = edev->dev_info.common.pci_mem_start; 662 ndev->base_addr = ndev->mem_start; 663 ndev->mem_end = edev->dev_info.common.pci_mem_end; 664 ndev->irq = edev->dev_info.common.pci_irq; 665 666 ndev->watchdog_timeo = TX_TIMEOUT; 667 668 if (IS_VF(edev)) { 669 if (edev->dev_info.xdp_supported) 670 ndev->netdev_ops = &qede_netdev_vf_xdp_ops; 671 else 672 ndev->netdev_ops = &qede_netdev_vf_ops; 673 } else { 674 ndev->netdev_ops = &qede_netdev_ops; 675 } 676 677 qede_set_ethtool_ops(ndev); 678 679 ndev->priv_flags |= IFF_UNICAST_FLT; 680 681 /* user-changeble features */ 682 hw_features = NETIF_F_GRO | NETIF_F_GRO_HW | NETIF_F_SG | 683 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | 684 NETIF_F_TSO | NETIF_F_TSO6; 685 686 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) 687 hw_features |= NETIF_F_NTUPLE; 688 689 if (edev->dev_info.common.vxlan_enable || 690 edev->dev_info.common.geneve_enable) 691 udp_tunnel_enable = true; 692 693 if (udp_tunnel_enable || edev->dev_info.common.gre_enable) { 694 hw_features |= NETIF_F_TSO_ECN; 695 ndev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | 696 NETIF_F_SG | NETIF_F_TSO | 697 NETIF_F_TSO_ECN | NETIF_F_TSO6 | 698 NETIF_F_RXCSUM; 699 } 700 701 if (udp_tunnel_enable) { 702 hw_features |= (NETIF_F_GSO_UDP_TUNNEL | 703 NETIF_F_GSO_UDP_TUNNEL_CSUM); 704 ndev->hw_enc_features |= (NETIF_F_GSO_UDP_TUNNEL | 705 NETIF_F_GSO_UDP_TUNNEL_CSUM); 706 } 707 708 if (edev->dev_info.common.gre_enable) { 709 hw_features |= (NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM); 710 ndev->hw_enc_features |= (NETIF_F_GSO_GRE | 711 NETIF_F_GSO_GRE_CSUM); 712 } 713 714 ndev->vlan_features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM | 715 NETIF_F_HIGHDMA; 716 ndev->features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM | 717 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA | 718 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_TX; 719 720 ndev->hw_features = hw_features; 721 722 /* MTU range: 46 - 9600 */ 723 ndev->min_mtu = ETH_ZLEN - ETH_HLEN; 724 ndev->max_mtu = QEDE_MAX_JUMBO_PACKET_SIZE; 725 726 /* Set network device HW mac */ 727 ether_addr_copy(edev->ndev->dev_addr, edev->dev_info.common.hw_mac); 728 729 ndev->mtu = edev->dev_info.common.mtu; 730 } 731 732 /* This function converts from 32b param to two params of level and module 733 * Input 32b decoding: 734 * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the 735 * 'happy' flow, e.g. memory allocation failed. 736 * b30 - enable all INFO prints. INFO prints are for major steps in the flow 737 * and provide important parameters. 738 * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that 739 * module. VERBOSE prints are for tracking the specific flow in low level. 740 * 741 * Notice that the level should be that of the lowest required logs. 742 */ 743 void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level) 744 { 745 *p_dp_level = QED_LEVEL_NOTICE; 746 *p_dp_module = 0; 747 748 if (debug & QED_LOG_VERBOSE_MASK) { 749 *p_dp_level = QED_LEVEL_VERBOSE; 750 *p_dp_module = (debug & 0x3FFFFFFF); 751 } else if (debug & QED_LOG_INFO_MASK) { 752 *p_dp_level = QED_LEVEL_INFO; 753 } else if (debug & QED_LOG_NOTICE_MASK) { 754 *p_dp_level = QED_LEVEL_NOTICE; 755 } 756 } 757 758 static void qede_free_fp_array(struct qede_dev *edev) 759 { 760 if (edev->fp_array) { 761 struct qede_fastpath *fp; 762 int i; 763 764 for_each_queue(i) { 765 fp = &edev->fp_array[i]; 766 767 kfree(fp->sb_info); 768 kfree(fp->rxq); 769 kfree(fp->xdp_tx); 770 kfree(fp->txq); 771 } 772 kfree(edev->fp_array); 773 } 774 775 edev->num_queues = 0; 776 edev->fp_num_tx = 0; 777 edev->fp_num_rx = 0; 778 } 779 780 static int qede_alloc_fp_array(struct qede_dev *edev) 781 { 782 u8 fp_combined, fp_rx = edev->fp_num_rx; 783 struct qede_fastpath *fp; 784 int i; 785 786 edev->fp_array = kcalloc(QEDE_QUEUE_CNT(edev), 787 sizeof(*edev->fp_array), GFP_KERNEL); 788 if (!edev->fp_array) { 789 DP_NOTICE(edev, "fp array allocation failed\n"); 790 goto err; 791 } 792 793 fp_combined = QEDE_QUEUE_CNT(edev) - fp_rx - edev->fp_num_tx; 794 795 /* Allocate the FP elements for Rx queues followed by combined and then 796 * the Tx. This ordering should be maintained so that the respective 797 * queues (Rx or Tx) will be together in the fastpath array and the 798 * associated ids will be sequential. 799 */ 800 for_each_queue(i) { 801 fp = &edev->fp_array[i]; 802 803 fp->sb_info = kzalloc(sizeof(*fp->sb_info), GFP_KERNEL); 804 if (!fp->sb_info) { 805 DP_NOTICE(edev, "sb info struct allocation failed\n"); 806 goto err; 807 } 808 809 if (fp_rx) { 810 fp->type = QEDE_FASTPATH_RX; 811 fp_rx--; 812 } else if (fp_combined) { 813 fp->type = QEDE_FASTPATH_COMBINED; 814 fp_combined--; 815 } else { 816 fp->type = QEDE_FASTPATH_TX; 817 } 818 819 if (fp->type & QEDE_FASTPATH_TX) { 820 fp->txq = kzalloc(sizeof(*fp->txq), GFP_KERNEL); 821 if (!fp->txq) 822 goto err; 823 } 824 825 if (fp->type & QEDE_FASTPATH_RX) { 826 fp->rxq = kzalloc(sizeof(*fp->rxq), GFP_KERNEL); 827 if (!fp->rxq) 828 goto err; 829 830 if (edev->xdp_prog) { 831 fp->xdp_tx = kzalloc(sizeof(*fp->xdp_tx), 832 GFP_KERNEL); 833 if (!fp->xdp_tx) 834 goto err; 835 fp->type |= QEDE_FASTPATH_XDP; 836 } 837 } 838 } 839 840 return 0; 841 err: 842 qede_free_fp_array(edev); 843 return -ENOMEM; 844 } 845 846 static void qede_sp_task(struct work_struct *work) 847 { 848 struct qede_dev *edev = container_of(work, struct qede_dev, 849 sp_task.work); 850 851 __qede_lock(edev); 852 853 if (test_and_clear_bit(QEDE_SP_RX_MODE, &edev->sp_flags)) 854 if (edev->state == QEDE_STATE_OPEN) 855 qede_config_rx_mode(edev->ndev); 856 857 #ifdef CONFIG_RFS_ACCEL 858 if (test_and_clear_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags)) { 859 if (edev->state == QEDE_STATE_OPEN) 860 qede_process_arfs_filters(edev, false); 861 } 862 #endif 863 __qede_unlock(edev); 864 } 865 866 static void qede_update_pf_params(struct qed_dev *cdev) 867 { 868 struct qed_pf_params pf_params; 869 870 /* 64 rx + 64 tx + 64 XDP */ 871 memset(&pf_params, 0, sizeof(struct qed_pf_params)); 872 pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * 3; 873 874 /* Same for VFs - make sure they'll have sufficient connections 875 * to support XDP Tx queues. 876 */ 877 pf_params.eth_pf_params.num_vf_cons = 48; 878 879 pf_params.eth_pf_params.num_arfs_filters = QEDE_RFS_MAX_FLTR; 880 qed_ops->common->update_pf_params(cdev, &pf_params); 881 } 882 883 #define QEDE_FW_VER_STR_SIZE 80 884 885 static void qede_log_probe(struct qede_dev *edev) 886 { 887 struct qed_dev_info *p_dev_info = &edev->dev_info.common; 888 u8 buf[QEDE_FW_VER_STR_SIZE]; 889 size_t left_size; 890 891 snprintf(buf, QEDE_FW_VER_STR_SIZE, 892 "Storm FW %d.%d.%d.%d, Management FW %d.%d.%d.%d", 893 p_dev_info->fw_major, p_dev_info->fw_minor, p_dev_info->fw_rev, 894 p_dev_info->fw_eng, 895 (p_dev_info->mfw_rev & QED_MFW_VERSION_3_MASK) >> 896 QED_MFW_VERSION_3_OFFSET, 897 (p_dev_info->mfw_rev & QED_MFW_VERSION_2_MASK) >> 898 QED_MFW_VERSION_2_OFFSET, 899 (p_dev_info->mfw_rev & QED_MFW_VERSION_1_MASK) >> 900 QED_MFW_VERSION_1_OFFSET, 901 (p_dev_info->mfw_rev & QED_MFW_VERSION_0_MASK) >> 902 QED_MFW_VERSION_0_OFFSET); 903 904 left_size = QEDE_FW_VER_STR_SIZE - strlen(buf); 905 if (p_dev_info->mbi_version && left_size) 906 snprintf(buf + strlen(buf), left_size, 907 " [MBI %d.%d.%d]", 908 (p_dev_info->mbi_version & QED_MBI_VERSION_2_MASK) >> 909 QED_MBI_VERSION_2_OFFSET, 910 (p_dev_info->mbi_version & QED_MBI_VERSION_1_MASK) >> 911 QED_MBI_VERSION_1_OFFSET, 912 (p_dev_info->mbi_version & QED_MBI_VERSION_0_MASK) >> 913 QED_MBI_VERSION_0_OFFSET); 914 915 pr_info("qede %02x:%02x.%02x: %s [%s]\n", edev->pdev->bus->number, 916 PCI_SLOT(edev->pdev->devfn), PCI_FUNC(edev->pdev->devfn), 917 buf, edev->ndev->name); 918 } 919 920 enum qede_probe_mode { 921 QEDE_PROBE_NORMAL, 922 }; 923 924 static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level, 925 bool is_vf, enum qede_probe_mode mode) 926 { 927 struct qed_probe_params probe_params; 928 struct qed_slowpath_params sp_params; 929 struct qed_dev_eth_info dev_info; 930 struct qede_dev *edev; 931 struct qed_dev *cdev; 932 int rc; 933 934 if (unlikely(dp_level & QED_LEVEL_INFO)) 935 pr_notice("Starting qede probe\n"); 936 937 memset(&probe_params, 0, sizeof(probe_params)); 938 probe_params.protocol = QED_PROTOCOL_ETH; 939 probe_params.dp_module = dp_module; 940 probe_params.dp_level = dp_level; 941 probe_params.is_vf = is_vf; 942 cdev = qed_ops->common->probe(pdev, &probe_params); 943 if (!cdev) { 944 rc = -ENODEV; 945 goto err0; 946 } 947 948 qede_update_pf_params(cdev); 949 950 /* Start the Slowpath-process */ 951 memset(&sp_params, 0, sizeof(sp_params)); 952 sp_params.int_mode = QED_INT_MODE_MSIX; 953 sp_params.drv_major = QEDE_MAJOR_VERSION; 954 sp_params.drv_minor = QEDE_MINOR_VERSION; 955 sp_params.drv_rev = QEDE_REVISION_VERSION; 956 sp_params.drv_eng = QEDE_ENGINEERING_VERSION; 957 strlcpy(sp_params.name, "qede LAN", QED_DRV_VER_STR_SIZE); 958 rc = qed_ops->common->slowpath_start(cdev, &sp_params); 959 if (rc) { 960 pr_notice("Cannot start slowpath\n"); 961 goto err1; 962 } 963 964 /* Learn information crucial for qede to progress */ 965 rc = qed_ops->fill_dev_info(cdev, &dev_info); 966 if (rc) 967 goto err2; 968 969 edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module, 970 dp_level); 971 if (!edev) { 972 rc = -ENOMEM; 973 goto err2; 974 } 975 976 if (is_vf) 977 edev->flags |= QEDE_FLAG_IS_VF; 978 979 qede_init_ndev(edev); 980 981 rc = qede_rdma_dev_add(edev); 982 if (rc) 983 goto err3; 984 985 /* Prepare the lock prior to the registeration of the netdev, 986 * as once it's registered we might reach flows requiring it 987 * [it's even possible to reach a flow needing it directly 988 * from there, although it's unlikely]. 989 */ 990 INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task); 991 mutex_init(&edev->qede_lock); 992 rc = register_netdev(edev->ndev); 993 if (rc) { 994 DP_NOTICE(edev, "Cannot register net-device\n"); 995 goto err4; 996 } 997 998 edev->ops->common->set_name(cdev, edev->ndev->name); 999 1000 /* PTP not supported on VFs */ 1001 if (!is_vf) 1002 qede_ptp_enable(edev, true); 1003 1004 edev->ops->register_ops(cdev, &qede_ll_ops, edev); 1005 1006 #ifdef CONFIG_DCB 1007 if (!IS_VF(edev)) 1008 qede_set_dcbnl_ops(edev->ndev); 1009 #endif 1010 1011 edev->rx_copybreak = QEDE_RX_HDR_SIZE; 1012 1013 qede_log_probe(edev); 1014 return 0; 1015 1016 err4: 1017 qede_rdma_dev_remove(edev); 1018 err3: 1019 free_netdev(edev->ndev); 1020 err2: 1021 qed_ops->common->slowpath_stop(cdev); 1022 err1: 1023 qed_ops->common->remove(cdev); 1024 err0: 1025 return rc; 1026 } 1027 1028 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1029 { 1030 bool is_vf = false; 1031 u32 dp_module = 0; 1032 u8 dp_level = 0; 1033 1034 switch ((enum qede_pci_private)id->driver_data) { 1035 case QEDE_PRIVATE_VF: 1036 if (debug & QED_LOG_VERBOSE_MASK) 1037 dev_err(&pdev->dev, "Probing a VF\n"); 1038 is_vf = true; 1039 break; 1040 default: 1041 if (debug & QED_LOG_VERBOSE_MASK) 1042 dev_err(&pdev->dev, "Probing a PF\n"); 1043 } 1044 1045 qede_config_debug(debug, &dp_module, &dp_level); 1046 1047 return __qede_probe(pdev, dp_module, dp_level, is_vf, 1048 QEDE_PROBE_NORMAL); 1049 } 1050 1051 enum qede_remove_mode { 1052 QEDE_REMOVE_NORMAL, 1053 }; 1054 1055 static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode) 1056 { 1057 struct net_device *ndev = pci_get_drvdata(pdev); 1058 struct qede_dev *edev = netdev_priv(ndev); 1059 struct qed_dev *cdev = edev->cdev; 1060 1061 DP_INFO(edev, "Starting qede_remove\n"); 1062 1063 unregister_netdev(ndev); 1064 cancel_delayed_work_sync(&edev->sp_task); 1065 1066 qede_ptp_disable(edev); 1067 1068 qede_rdma_dev_remove(edev); 1069 1070 edev->ops->common->set_power_state(cdev, PCI_D0); 1071 1072 pci_set_drvdata(pdev, NULL); 1073 1074 /* Use global ops since we've freed edev */ 1075 qed_ops->common->slowpath_stop(cdev); 1076 if (system_state == SYSTEM_POWER_OFF) 1077 return; 1078 qed_ops->common->remove(cdev); 1079 1080 /* Since this can happen out-of-sync with other flows, 1081 * don't release the netdevice until after slowpath stop 1082 * has been called to guarantee various other contexts 1083 * [e.g., QED register callbacks] won't break anything when 1084 * accessing the netdevice. 1085 */ 1086 free_netdev(ndev); 1087 1088 dev_info(&pdev->dev, "Ending qede_remove successfully\n"); 1089 } 1090 1091 static void qede_remove(struct pci_dev *pdev) 1092 { 1093 __qede_remove(pdev, QEDE_REMOVE_NORMAL); 1094 } 1095 1096 static void qede_shutdown(struct pci_dev *pdev) 1097 { 1098 __qede_remove(pdev, QEDE_REMOVE_NORMAL); 1099 } 1100 1101 /* ------------------------------------------------------------------------- 1102 * START OF LOAD / UNLOAD 1103 * ------------------------------------------------------------------------- 1104 */ 1105 1106 static int qede_set_num_queues(struct qede_dev *edev) 1107 { 1108 int rc; 1109 u16 rss_num; 1110 1111 /* Setup queues according to possible resources*/ 1112 if (edev->req_queues) 1113 rss_num = edev->req_queues; 1114 else 1115 rss_num = netif_get_num_default_rss_queues() * 1116 edev->dev_info.common.num_hwfns; 1117 1118 rss_num = min_t(u16, QEDE_MAX_RSS_CNT(edev), rss_num); 1119 1120 rc = edev->ops->common->set_fp_int(edev->cdev, rss_num); 1121 if (rc > 0) { 1122 /* Managed to request interrupts for our queues */ 1123 edev->num_queues = rc; 1124 DP_INFO(edev, "Managed %d [of %d] RSS queues\n", 1125 QEDE_QUEUE_CNT(edev), rss_num); 1126 rc = 0; 1127 } 1128 1129 edev->fp_num_tx = edev->req_num_tx; 1130 edev->fp_num_rx = edev->req_num_rx; 1131 1132 return rc; 1133 } 1134 1135 static void qede_free_mem_sb(struct qede_dev *edev, struct qed_sb_info *sb_info, 1136 u16 sb_id) 1137 { 1138 if (sb_info->sb_virt) { 1139 edev->ops->common->sb_release(edev->cdev, sb_info, sb_id); 1140 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_info->sb_virt), 1141 (void *)sb_info->sb_virt, sb_info->sb_phys); 1142 memset(sb_info, 0, sizeof(*sb_info)); 1143 } 1144 } 1145 1146 /* This function allocates fast-path status block memory */ 1147 static int qede_alloc_mem_sb(struct qede_dev *edev, 1148 struct qed_sb_info *sb_info, u16 sb_id) 1149 { 1150 struct status_block *sb_virt; 1151 dma_addr_t sb_phys; 1152 int rc; 1153 1154 sb_virt = dma_alloc_coherent(&edev->pdev->dev, 1155 sizeof(*sb_virt), &sb_phys, GFP_KERNEL); 1156 if (!sb_virt) { 1157 DP_ERR(edev, "Status block allocation failed\n"); 1158 return -ENOMEM; 1159 } 1160 1161 rc = edev->ops->common->sb_init(edev->cdev, sb_info, 1162 sb_virt, sb_phys, sb_id, 1163 QED_SB_TYPE_L2_QUEUE); 1164 if (rc) { 1165 DP_ERR(edev, "Status block initialization failed\n"); 1166 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_virt), 1167 sb_virt, sb_phys); 1168 return rc; 1169 } 1170 1171 return 0; 1172 } 1173 1174 static void qede_free_rx_buffers(struct qede_dev *edev, 1175 struct qede_rx_queue *rxq) 1176 { 1177 u16 i; 1178 1179 for (i = rxq->sw_rx_cons; i != rxq->sw_rx_prod; i++) { 1180 struct sw_rx_data *rx_buf; 1181 struct page *data; 1182 1183 rx_buf = &rxq->sw_rx_ring[i & NUM_RX_BDS_MAX]; 1184 data = rx_buf->data; 1185 1186 dma_unmap_page(&edev->pdev->dev, 1187 rx_buf->mapping, PAGE_SIZE, rxq->data_direction); 1188 1189 rx_buf->data = NULL; 1190 __free_page(data); 1191 } 1192 } 1193 1194 static void qede_free_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq) 1195 { 1196 int i; 1197 1198 if (edev->gro_disable) 1199 return; 1200 1201 for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) { 1202 struct qede_agg_info *tpa_info = &rxq->tpa_info[i]; 1203 struct sw_rx_data *replace_buf = &tpa_info->buffer; 1204 1205 if (replace_buf->data) { 1206 dma_unmap_page(&edev->pdev->dev, 1207 replace_buf->mapping, 1208 PAGE_SIZE, DMA_FROM_DEVICE); 1209 __free_page(replace_buf->data); 1210 } 1211 } 1212 } 1213 1214 static void qede_free_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq) 1215 { 1216 qede_free_sge_mem(edev, rxq); 1217 1218 /* Free rx buffers */ 1219 qede_free_rx_buffers(edev, rxq); 1220 1221 /* Free the parallel SW ring */ 1222 kfree(rxq->sw_rx_ring); 1223 1224 /* Free the real RQ ring used by FW */ 1225 edev->ops->common->chain_free(edev->cdev, &rxq->rx_bd_ring); 1226 edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring); 1227 } 1228 1229 static int qede_alloc_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq) 1230 { 1231 dma_addr_t mapping; 1232 int i; 1233 1234 if (edev->gro_disable) 1235 return 0; 1236 1237 for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) { 1238 struct qede_agg_info *tpa_info = &rxq->tpa_info[i]; 1239 struct sw_rx_data *replace_buf = &tpa_info->buffer; 1240 1241 replace_buf->data = alloc_pages(GFP_ATOMIC, 0); 1242 if (unlikely(!replace_buf->data)) { 1243 DP_NOTICE(edev, 1244 "Failed to allocate TPA skb pool [replacement buffer]\n"); 1245 goto err; 1246 } 1247 1248 mapping = dma_map_page(&edev->pdev->dev, replace_buf->data, 0, 1249 PAGE_SIZE, DMA_FROM_DEVICE); 1250 if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) { 1251 DP_NOTICE(edev, 1252 "Failed to map TPA replacement buffer\n"); 1253 goto err; 1254 } 1255 1256 replace_buf->mapping = mapping; 1257 tpa_info->buffer.page_offset = 0; 1258 tpa_info->buffer_mapping = mapping; 1259 tpa_info->state = QEDE_AGG_STATE_NONE; 1260 } 1261 1262 return 0; 1263 err: 1264 qede_free_sge_mem(edev, rxq); 1265 edev->gro_disable = 1; 1266 edev->ndev->features &= ~NETIF_F_GRO_HW; 1267 return -ENOMEM; 1268 } 1269 1270 /* This function allocates all memory needed per Rx queue */ 1271 static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq) 1272 { 1273 int i, rc, size; 1274 1275 rxq->num_rx_buffers = edev->q_num_rx_buffers; 1276 1277 rxq->rx_buf_size = NET_IP_ALIGN + ETH_OVERHEAD + edev->ndev->mtu; 1278 rxq->rx_headroom = edev->xdp_prog ? XDP_PACKET_HEADROOM : 0; 1279 1280 /* Make sure that the headroom and payload fit in a single page */ 1281 if (rxq->rx_buf_size + rxq->rx_headroom > PAGE_SIZE) 1282 rxq->rx_buf_size = PAGE_SIZE - rxq->rx_headroom; 1283 1284 /* Segment size to spilt a page in multiple equal parts, 1285 * unless XDP is used in which case we'd use the entire page. 1286 */ 1287 if (!edev->xdp_prog) 1288 rxq->rx_buf_seg_size = roundup_pow_of_two(rxq->rx_buf_size); 1289 else 1290 rxq->rx_buf_seg_size = PAGE_SIZE; 1291 1292 /* Allocate the parallel driver ring for Rx buffers */ 1293 size = sizeof(*rxq->sw_rx_ring) * RX_RING_SIZE; 1294 rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL); 1295 if (!rxq->sw_rx_ring) { 1296 DP_ERR(edev, "Rx buffers ring allocation failed\n"); 1297 rc = -ENOMEM; 1298 goto err; 1299 } 1300 1301 /* Allocate FW Rx ring */ 1302 rc = edev->ops->common->chain_alloc(edev->cdev, 1303 QED_CHAIN_USE_TO_CONSUME_PRODUCE, 1304 QED_CHAIN_MODE_NEXT_PTR, 1305 QED_CHAIN_CNT_TYPE_U16, 1306 RX_RING_SIZE, 1307 sizeof(struct eth_rx_bd), 1308 &rxq->rx_bd_ring, NULL); 1309 if (rc) 1310 goto err; 1311 1312 /* Allocate FW completion ring */ 1313 rc = edev->ops->common->chain_alloc(edev->cdev, 1314 QED_CHAIN_USE_TO_CONSUME, 1315 QED_CHAIN_MODE_PBL, 1316 QED_CHAIN_CNT_TYPE_U16, 1317 RX_RING_SIZE, 1318 sizeof(union eth_rx_cqe), 1319 &rxq->rx_comp_ring, NULL); 1320 if (rc) 1321 goto err; 1322 1323 /* Allocate buffers for the Rx ring */ 1324 rxq->filled_buffers = 0; 1325 for (i = 0; i < rxq->num_rx_buffers; i++) { 1326 rc = qede_alloc_rx_buffer(rxq, false); 1327 if (rc) { 1328 DP_ERR(edev, 1329 "Rx buffers allocation failed at index %d\n", i); 1330 goto err; 1331 } 1332 } 1333 1334 rc = qede_alloc_sge_mem(edev, rxq); 1335 err: 1336 return rc; 1337 } 1338 1339 static void qede_free_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq) 1340 { 1341 /* Free the parallel SW ring */ 1342 if (txq->is_xdp) 1343 kfree(txq->sw_tx_ring.xdp); 1344 else 1345 kfree(txq->sw_tx_ring.skbs); 1346 1347 /* Free the real RQ ring used by FW */ 1348 edev->ops->common->chain_free(edev->cdev, &txq->tx_pbl); 1349 } 1350 1351 /* This function allocates all memory needed per Tx queue */ 1352 static int qede_alloc_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq) 1353 { 1354 union eth_tx_bd_types *p_virt; 1355 int size, rc; 1356 1357 txq->num_tx_buffers = edev->q_num_tx_buffers; 1358 1359 /* Allocate the parallel driver ring for Tx buffers */ 1360 if (txq->is_xdp) { 1361 size = sizeof(*txq->sw_tx_ring.xdp) * txq->num_tx_buffers; 1362 txq->sw_tx_ring.xdp = kzalloc(size, GFP_KERNEL); 1363 if (!txq->sw_tx_ring.xdp) 1364 goto err; 1365 } else { 1366 size = sizeof(*txq->sw_tx_ring.skbs) * txq->num_tx_buffers; 1367 txq->sw_tx_ring.skbs = kzalloc(size, GFP_KERNEL); 1368 if (!txq->sw_tx_ring.skbs) 1369 goto err; 1370 } 1371 1372 rc = edev->ops->common->chain_alloc(edev->cdev, 1373 QED_CHAIN_USE_TO_CONSUME_PRODUCE, 1374 QED_CHAIN_MODE_PBL, 1375 QED_CHAIN_CNT_TYPE_U16, 1376 txq->num_tx_buffers, 1377 sizeof(*p_virt), 1378 &txq->tx_pbl, NULL); 1379 if (rc) 1380 goto err; 1381 1382 return 0; 1383 1384 err: 1385 qede_free_mem_txq(edev, txq); 1386 return -ENOMEM; 1387 } 1388 1389 /* This function frees all memory of a single fp */ 1390 static void qede_free_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp) 1391 { 1392 qede_free_mem_sb(edev, fp->sb_info, fp->id); 1393 1394 if (fp->type & QEDE_FASTPATH_RX) 1395 qede_free_mem_rxq(edev, fp->rxq); 1396 1397 if (fp->type & QEDE_FASTPATH_XDP) 1398 qede_free_mem_txq(edev, fp->xdp_tx); 1399 1400 if (fp->type & QEDE_FASTPATH_TX) 1401 qede_free_mem_txq(edev, fp->txq); 1402 } 1403 1404 /* This function allocates all memory needed for a single fp (i.e. an entity 1405 * which contains status block, one rx queue and/or multiple per-TC tx queues. 1406 */ 1407 static int qede_alloc_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp) 1408 { 1409 int rc = 0; 1410 1411 rc = qede_alloc_mem_sb(edev, fp->sb_info, fp->id); 1412 if (rc) 1413 goto out; 1414 1415 if (fp->type & QEDE_FASTPATH_RX) { 1416 rc = qede_alloc_mem_rxq(edev, fp->rxq); 1417 if (rc) 1418 goto out; 1419 } 1420 1421 if (fp->type & QEDE_FASTPATH_XDP) { 1422 rc = qede_alloc_mem_txq(edev, fp->xdp_tx); 1423 if (rc) 1424 goto out; 1425 } 1426 1427 if (fp->type & QEDE_FASTPATH_TX) { 1428 rc = qede_alloc_mem_txq(edev, fp->txq); 1429 if (rc) 1430 goto out; 1431 } 1432 1433 out: 1434 return rc; 1435 } 1436 1437 static void qede_free_mem_load(struct qede_dev *edev) 1438 { 1439 int i; 1440 1441 for_each_queue(i) { 1442 struct qede_fastpath *fp = &edev->fp_array[i]; 1443 1444 qede_free_mem_fp(edev, fp); 1445 } 1446 } 1447 1448 /* This function allocates all qede memory at NIC load. */ 1449 static int qede_alloc_mem_load(struct qede_dev *edev) 1450 { 1451 int rc = 0, queue_id; 1452 1453 for (queue_id = 0; queue_id < QEDE_QUEUE_CNT(edev); queue_id++) { 1454 struct qede_fastpath *fp = &edev->fp_array[queue_id]; 1455 1456 rc = qede_alloc_mem_fp(edev, fp); 1457 if (rc) { 1458 DP_ERR(edev, 1459 "Failed to allocate memory for fastpath - rss id = %d\n", 1460 queue_id); 1461 qede_free_mem_load(edev); 1462 return rc; 1463 } 1464 } 1465 1466 return 0; 1467 } 1468 1469 /* This function inits fp content and resets the SB, RXQ and TXQ structures */ 1470 static void qede_init_fp(struct qede_dev *edev) 1471 { 1472 int queue_id, rxq_index = 0, txq_index = 0; 1473 struct qede_fastpath *fp; 1474 1475 for_each_queue(queue_id) { 1476 fp = &edev->fp_array[queue_id]; 1477 1478 fp->edev = edev; 1479 fp->id = queue_id; 1480 1481 if (fp->type & QEDE_FASTPATH_XDP) { 1482 fp->xdp_tx->index = QEDE_TXQ_IDX_TO_XDP(edev, 1483 rxq_index); 1484 fp->xdp_tx->is_xdp = 1; 1485 } 1486 1487 if (fp->type & QEDE_FASTPATH_RX) { 1488 fp->rxq->rxq_id = rxq_index++; 1489 1490 /* Determine how to map buffers for this queue */ 1491 if (fp->type & QEDE_FASTPATH_XDP) 1492 fp->rxq->data_direction = DMA_BIDIRECTIONAL; 1493 else 1494 fp->rxq->data_direction = DMA_FROM_DEVICE; 1495 fp->rxq->dev = &edev->pdev->dev; 1496 } 1497 1498 if (fp->type & QEDE_FASTPATH_TX) { 1499 fp->txq->index = txq_index++; 1500 if (edev->dev_info.is_legacy) 1501 fp->txq->is_legacy = 1; 1502 fp->txq->dev = &edev->pdev->dev; 1503 } 1504 1505 snprintf(fp->name, sizeof(fp->name), "%s-fp-%d", 1506 edev->ndev->name, queue_id); 1507 } 1508 1509 edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO_HW); 1510 } 1511 1512 static int qede_set_real_num_queues(struct qede_dev *edev) 1513 { 1514 int rc = 0; 1515 1516 rc = netif_set_real_num_tx_queues(edev->ndev, QEDE_TSS_COUNT(edev)); 1517 if (rc) { 1518 DP_NOTICE(edev, "Failed to set real number of Tx queues\n"); 1519 return rc; 1520 } 1521 1522 rc = netif_set_real_num_rx_queues(edev->ndev, QEDE_RSS_COUNT(edev)); 1523 if (rc) { 1524 DP_NOTICE(edev, "Failed to set real number of Rx queues\n"); 1525 return rc; 1526 } 1527 1528 return 0; 1529 } 1530 1531 static void qede_napi_disable_remove(struct qede_dev *edev) 1532 { 1533 int i; 1534 1535 for_each_queue(i) { 1536 napi_disable(&edev->fp_array[i].napi); 1537 1538 netif_napi_del(&edev->fp_array[i].napi); 1539 } 1540 } 1541 1542 static void qede_napi_add_enable(struct qede_dev *edev) 1543 { 1544 int i; 1545 1546 /* Add NAPI objects */ 1547 for_each_queue(i) { 1548 netif_napi_add(edev->ndev, &edev->fp_array[i].napi, 1549 qede_poll, NAPI_POLL_WEIGHT); 1550 napi_enable(&edev->fp_array[i].napi); 1551 } 1552 } 1553 1554 static void qede_sync_free_irqs(struct qede_dev *edev) 1555 { 1556 int i; 1557 1558 for (i = 0; i < edev->int_info.used_cnt; i++) { 1559 if (edev->int_info.msix_cnt) { 1560 synchronize_irq(edev->int_info.msix[i].vector); 1561 free_irq(edev->int_info.msix[i].vector, 1562 &edev->fp_array[i]); 1563 } else { 1564 edev->ops->common->simd_handler_clean(edev->cdev, i); 1565 } 1566 } 1567 1568 edev->int_info.used_cnt = 0; 1569 } 1570 1571 static int qede_req_msix_irqs(struct qede_dev *edev) 1572 { 1573 int i, rc; 1574 1575 /* Sanitize number of interrupts == number of prepared RSS queues */ 1576 if (QEDE_QUEUE_CNT(edev) > edev->int_info.msix_cnt) { 1577 DP_ERR(edev, 1578 "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n", 1579 QEDE_QUEUE_CNT(edev), edev->int_info.msix_cnt); 1580 return -EINVAL; 1581 } 1582 1583 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) { 1584 #ifdef CONFIG_RFS_ACCEL 1585 struct qede_fastpath *fp = &edev->fp_array[i]; 1586 1587 if (edev->ndev->rx_cpu_rmap && (fp->type & QEDE_FASTPATH_RX)) { 1588 rc = irq_cpu_rmap_add(edev->ndev->rx_cpu_rmap, 1589 edev->int_info.msix[i].vector); 1590 if (rc) { 1591 DP_ERR(edev, "Failed to add CPU rmap\n"); 1592 qede_free_arfs(edev); 1593 } 1594 } 1595 #endif 1596 rc = request_irq(edev->int_info.msix[i].vector, 1597 qede_msix_fp_int, 0, edev->fp_array[i].name, 1598 &edev->fp_array[i]); 1599 if (rc) { 1600 DP_ERR(edev, "Request fp %d irq failed\n", i); 1601 qede_sync_free_irqs(edev); 1602 return rc; 1603 } 1604 DP_VERBOSE(edev, NETIF_MSG_INTR, 1605 "Requested fp irq for %s [entry %d]. Cookie is at %p\n", 1606 edev->fp_array[i].name, i, 1607 &edev->fp_array[i]); 1608 edev->int_info.used_cnt++; 1609 } 1610 1611 return 0; 1612 } 1613 1614 static void qede_simd_fp_handler(void *cookie) 1615 { 1616 struct qede_fastpath *fp = (struct qede_fastpath *)cookie; 1617 1618 napi_schedule_irqoff(&fp->napi); 1619 } 1620 1621 static int qede_setup_irqs(struct qede_dev *edev) 1622 { 1623 int i, rc = 0; 1624 1625 /* Learn Interrupt configuration */ 1626 rc = edev->ops->common->get_fp_int(edev->cdev, &edev->int_info); 1627 if (rc) 1628 return rc; 1629 1630 if (edev->int_info.msix_cnt) { 1631 rc = qede_req_msix_irqs(edev); 1632 if (rc) 1633 return rc; 1634 edev->ndev->irq = edev->int_info.msix[0].vector; 1635 } else { 1636 const struct qed_common_ops *ops; 1637 1638 /* qed should learn receive the RSS ids and callbacks */ 1639 ops = edev->ops->common; 1640 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) 1641 ops->simd_handler_config(edev->cdev, 1642 &edev->fp_array[i], i, 1643 qede_simd_fp_handler); 1644 edev->int_info.used_cnt = QEDE_QUEUE_CNT(edev); 1645 } 1646 return 0; 1647 } 1648 1649 static int qede_drain_txq(struct qede_dev *edev, 1650 struct qede_tx_queue *txq, bool allow_drain) 1651 { 1652 int rc, cnt = 1000; 1653 1654 while (txq->sw_tx_cons != txq->sw_tx_prod) { 1655 if (!cnt) { 1656 if (allow_drain) { 1657 DP_NOTICE(edev, 1658 "Tx queue[%d] is stuck, requesting MCP to drain\n", 1659 txq->index); 1660 rc = edev->ops->common->drain(edev->cdev); 1661 if (rc) 1662 return rc; 1663 return qede_drain_txq(edev, txq, false); 1664 } 1665 DP_NOTICE(edev, 1666 "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n", 1667 txq->index, txq->sw_tx_prod, 1668 txq->sw_tx_cons); 1669 return -ENODEV; 1670 } 1671 cnt--; 1672 usleep_range(1000, 2000); 1673 barrier(); 1674 } 1675 1676 /* FW finished processing, wait for HW to transmit all tx packets */ 1677 usleep_range(1000, 2000); 1678 1679 return 0; 1680 } 1681 1682 static int qede_stop_txq(struct qede_dev *edev, 1683 struct qede_tx_queue *txq, int rss_id) 1684 { 1685 return edev->ops->q_tx_stop(edev->cdev, rss_id, txq->handle); 1686 } 1687 1688 static int qede_stop_queues(struct qede_dev *edev) 1689 { 1690 struct qed_update_vport_params *vport_update_params; 1691 struct qed_dev *cdev = edev->cdev; 1692 struct qede_fastpath *fp; 1693 int rc, i; 1694 1695 /* Disable the vport */ 1696 vport_update_params = vzalloc(sizeof(*vport_update_params)); 1697 if (!vport_update_params) 1698 return -ENOMEM; 1699 1700 vport_update_params->vport_id = 0; 1701 vport_update_params->update_vport_active_flg = 1; 1702 vport_update_params->vport_active_flg = 0; 1703 vport_update_params->update_rss_flg = 0; 1704 1705 rc = edev->ops->vport_update(cdev, vport_update_params); 1706 vfree(vport_update_params); 1707 1708 if (rc) { 1709 DP_ERR(edev, "Failed to update vport\n"); 1710 return rc; 1711 } 1712 1713 /* Flush Tx queues. If needed, request drain from MCP */ 1714 for_each_queue(i) { 1715 fp = &edev->fp_array[i]; 1716 1717 if (fp->type & QEDE_FASTPATH_TX) { 1718 rc = qede_drain_txq(edev, fp->txq, true); 1719 if (rc) 1720 return rc; 1721 } 1722 1723 if (fp->type & QEDE_FASTPATH_XDP) { 1724 rc = qede_drain_txq(edev, fp->xdp_tx, true); 1725 if (rc) 1726 return rc; 1727 } 1728 } 1729 1730 /* Stop all Queues in reverse order */ 1731 for (i = QEDE_QUEUE_CNT(edev) - 1; i >= 0; i--) { 1732 fp = &edev->fp_array[i]; 1733 1734 /* Stop the Tx Queue(s) */ 1735 if (fp->type & QEDE_FASTPATH_TX) { 1736 rc = qede_stop_txq(edev, fp->txq, i); 1737 if (rc) 1738 return rc; 1739 } 1740 1741 /* Stop the Rx Queue */ 1742 if (fp->type & QEDE_FASTPATH_RX) { 1743 rc = edev->ops->q_rx_stop(cdev, i, fp->rxq->handle); 1744 if (rc) { 1745 DP_ERR(edev, "Failed to stop RXQ #%d\n", i); 1746 return rc; 1747 } 1748 } 1749 1750 /* Stop the XDP forwarding queue */ 1751 if (fp->type & QEDE_FASTPATH_XDP) { 1752 rc = qede_stop_txq(edev, fp->xdp_tx, i); 1753 if (rc) 1754 return rc; 1755 1756 bpf_prog_put(fp->rxq->xdp_prog); 1757 } 1758 } 1759 1760 /* Stop the vport */ 1761 rc = edev->ops->vport_stop(cdev, 0); 1762 if (rc) 1763 DP_ERR(edev, "Failed to stop VPORT\n"); 1764 1765 return rc; 1766 } 1767 1768 static int qede_start_txq(struct qede_dev *edev, 1769 struct qede_fastpath *fp, 1770 struct qede_tx_queue *txq, u8 rss_id, u16 sb_idx) 1771 { 1772 dma_addr_t phys_table = qed_chain_get_pbl_phys(&txq->tx_pbl); 1773 u32 page_cnt = qed_chain_get_page_cnt(&txq->tx_pbl); 1774 struct qed_queue_start_common_params params; 1775 struct qed_txq_start_ret_params ret_params; 1776 int rc; 1777 1778 memset(¶ms, 0, sizeof(params)); 1779 memset(&ret_params, 0, sizeof(ret_params)); 1780 1781 /* Let the XDP queue share the queue-zone with one of the regular txq. 1782 * We don't really care about its coalescing. 1783 */ 1784 if (txq->is_xdp) 1785 params.queue_id = QEDE_TXQ_XDP_TO_IDX(edev, txq); 1786 else 1787 params.queue_id = txq->index; 1788 1789 params.p_sb = fp->sb_info; 1790 params.sb_idx = sb_idx; 1791 1792 rc = edev->ops->q_tx_start(edev->cdev, rss_id, ¶ms, phys_table, 1793 page_cnt, &ret_params); 1794 if (rc) { 1795 DP_ERR(edev, "Start TXQ #%d failed %d\n", txq->index, rc); 1796 return rc; 1797 } 1798 1799 txq->doorbell_addr = ret_params.p_doorbell; 1800 txq->handle = ret_params.p_handle; 1801 1802 /* Determine the FW consumer address associated */ 1803 txq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[sb_idx]; 1804 1805 /* Prepare the doorbell parameters */ 1806 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_DEST, DB_DEST_XCM); 1807 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD, DB_AGG_CMD_SET); 1808 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_VAL_SEL, 1809 DQ_XCM_ETH_TX_BD_PROD_CMD); 1810 txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD; 1811 1812 return rc; 1813 } 1814 1815 static int qede_start_queues(struct qede_dev *edev, bool clear_stats) 1816 { 1817 int vlan_removal_en = 1; 1818 struct qed_dev *cdev = edev->cdev; 1819 struct qed_dev_info *qed_info = &edev->dev_info.common; 1820 struct qed_update_vport_params *vport_update_params; 1821 struct qed_queue_start_common_params q_params; 1822 struct qed_start_vport_params start = {0}; 1823 int rc, i; 1824 1825 if (!edev->num_queues) { 1826 DP_ERR(edev, 1827 "Cannot update V-VPORT as active as there are no Rx queues\n"); 1828 return -EINVAL; 1829 } 1830 1831 vport_update_params = vzalloc(sizeof(*vport_update_params)); 1832 if (!vport_update_params) 1833 return -ENOMEM; 1834 1835 start.handle_ptp_pkts = !!(edev->ptp); 1836 start.gro_enable = !edev->gro_disable; 1837 start.mtu = edev->ndev->mtu; 1838 start.vport_id = 0; 1839 start.drop_ttl0 = true; 1840 start.remove_inner_vlan = vlan_removal_en; 1841 start.clear_stats = clear_stats; 1842 1843 rc = edev->ops->vport_start(cdev, &start); 1844 1845 if (rc) { 1846 DP_ERR(edev, "Start V-PORT failed %d\n", rc); 1847 goto out; 1848 } 1849 1850 DP_VERBOSE(edev, NETIF_MSG_IFUP, 1851 "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n", 1852 start.vport_id, edev->ndev->mtu + 0xe, vlan_removal_en); 1853 1854 for_each_queue(i) { 1855 struct qede_fastpath *fp = &edev->fp_array[i]; 1856 dma_addr_t p_phys_table; 1857 u32 page_cnt; 1858 1859 if (fp->type & QEDE_FASTPATH_RX) { 1860 struct qed_rxq_start_ret_params ret_params; 1861 struct qede_rx_queue *rxq = fp->rxq; 1862 __le16 *val; 1863 1864 memset(&ret_params, 0, sizeof(ret_params)); 1865 memset(&q_params, 0, sizeof(q_params)); 1866 q_params.queue_id = rxq->rxq_id; 1867 q_params.vport_id = 0; 1868 q_params.p_sb = fp->sb_info; 1869 q_params.sb_idx = RX_PI; 1870 1871 p_phys_table = 1872 qed_chain_get_pbl_phys(&rxq->rx_comp_ring); 1873 page_cnt = qed_chain_get_page_cnt(&rxq->rx_comp_ring); 1874 1875 rc = edev->ops->q_rx_start(cdev, i, &q_params, 1876 rxq->rx_buf_size, 1877 rxq->rx_bd_ring.p_phys_addr, 1878 p_phys_table, 1879 page_cnt, &ret_params); 1880 if (rc) { 1881 DP_ERR(edev, "Start RXQ #%d failed %d\n", i, 1882 rc); 1883 goto out; 1884 } 1885 1886 /* Use the return parameters */ 1887 rxq->hw_rxq_prod_addr = ret_params.p_prod; 1888 rxq->handle = ret_params.p_handle; 1889 1890 val = &fp->sb_info->sb_virt->pi_array[RX_PI]; 1891 rxq->hw_cons_ptr = val; 1892 1893 qede_update_rx_prod(edev, rxq); 1894 } 1895 1896 if (fp->type & QEDE_FASTPATH_XDP) { 1897 rc = qede_start_txq(edev, fp, fp->xdp_tx, i, XDP_PI); 1898 if (rc) 1899 goto out; 1900 1901 fp->rxq->xdp_prog = bpf_prog_add(edev->xdp_prog, 1); 1902 if (IS_ERR(fp->rxq->xdp_prog)) { 1903 rc = PTR_ERR(fp->rxq->xdp_prog); 1904 fp->rxq->xdp_prog = NULL; 1905 goto out; 1906 } 1907 } 1908 1909 if (fp->type & QEDE_FASTPATH_TX) { 1910 rc = qede_start_txq(edev, fp, fp->txq, i, TX_PI(0)); 1911 if (rc) 1912 goto out; 1913 } 1914 } 1915 1916 /* Prepare and send the vport enable */ 1917 vport_update_params->vport_id = start.vport_id; 1918 vport_update_params->update_vport_active_flg = 1; 1919 vport_update_params->vport_active_flg = 1; 1920 1921 if ((qed_info->mf_mode == QED_MF_NPAR || pci_num_vf(edev->pdev)) && 1922 qed_info->tx_switching) { 1923 vport_update_params->update_tx_switching_flg = 1; 1924 vport_update_params->tx_switching_flg = 1; 1925 } 1926 1927 qede_fill_rss_params(edev, &vport_update_params->rss_params, 1928 &vport_update_params->update_rss_flg); 1929 1930 rc = edev->ops->vport_update(cdev, vport_update_params); 1931 if (rc) 1932 DP_ERR(edev, "Update V-PORT failed %d\n", rc); 1933 1934 out: 1935 vfree(vport_update_params); 1936 return rc; 1937 } 1938 1939 enum qede_unload_mode { 1940 QEDE_UNLOAD_NORMAL, 1941 }; 1942 1943 static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode, 1944 bool is_locked) 1945 { 1946 struct qed_link_params link_params; 1947 int rc; 1948 1949 DP_INFO(edev, "Starting qede unload\n"); 1950 1951 if (!is_locked) 1952 __qede_lock(edev); 1953 1954 edev->state = QEDE_STATE_CLOSED; 1955 1956 qede_rdma_dev_event_close(edev); 1957 1958 /* Close OS Tx */ 1959 netif_tx_disable(edev->ndev); 1960 netif_carrier_off(edev->ndev); 1961 1962 /* Reset the link */ 1963 memset(&link_params, 0, sizeof(link_params)); 1964 link_params.link_up = false; 1965 edev->ops->common->set_link(edev->cdev, &link_params); 1966 rc = qede_stop_queues(edev); 1967 if (rc) { 1968 qede_sync_free_irqs(edev); 1969 goto out; 1970 } 1971 1972 DP_INFO(edev, "Stopped Queues\n"); 1973 1974 qede_vlan_mark_nonconfigured(edev); 1975 edev->ops->fastpath_stop(edev->cdev); 1976 1977 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) { 1978 qede_poll_for_freeing_arfs_filters(edev); 1979 qede_free_arfs(edev); 1980 } 1981 1982 /* Release the interrupts */ 1983 qede_sync_free_irqs(edev); 1984 edev->ops->common->set_fp_int(edev->cdev, 0); 1985 1986 qede_napi_disable_remove(edev); 1987 1988 qede_free_mem_load(edev); 1989 qede_free_fp_array(edev); 1990 1991 out: 1992 if (!is_locked) 1993 __qede_unlock(edev); 1994 DP_INFO(edev, "Ending qede unload\n"); 1995 } 1996 1997 enum qede_load_mode { 1998 QEDE_LOAD_NORMAL, 1999 QEDE_LOAD_RELOAD, 2000 }; 2001 2002 static int qede_load(struct qede_dev *edev, enum qede_load_mode mode, 2003 bool is_locked) 2004 { 2005 struct qed_link_params link_params; 2006 int rc; 2007 2008 DP_INFO(edev, "Starting qede load\n"); 2009 2010 if (!is_locked) 2011 __qede_lock(edev); 2012 2013 rc = qede_set_num_queues(edev); 2014 if (rc) 2015 goto out; 2016 2017 rc = qede_alloc_fp_array(edev); 2018 if (rc) 2019 goto out; 2020 2021 qede_init_fp(edev); 2022 2023 rc = qede_alloc_mem_load(edev); 2024 if (rc) 2025 goto err1; 2026 DP_INFO(edev, "Allocated %d Rx, %d Tx queues\n", 2027 QEDE_RSS_COUNT(edev), QEDE_TSS_COUNT(edev)); 2028 2029 rc = qede_set_real_num_queues(edev); 2030 if (rc) 2031 goto err2; 2032 2033 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) { 2034 rc = qede_alloc_arfs(edev); 2035 if (rc) 2036 DP_NOTICE(edev, "aRFS memory allocation failed\n"); 2037 } 2038 2039 qede_napi_add_enable(edev); 2040 DP_INFO(edev, "Napi added and enabled\n"); 2041 2042 rc = qede_setup_irqs(edev); 2043 if (rc) 2044 goto err3; 2045 DP_INFO(edev, "Setup IRQs succeeded\n"); 2046 2047 rc = qede_start_queues(edev, mode != QEDE_LOAD_RELOAD); 2048 if (rc) 2049 goto err4; 2050 DP_INFO(edev, "Start VPORT, RXQ and TXQ succeeded\n"); 2051 2052 /* Program un-configured VLANs */ 2053 qede_configure_vlan_filters(edev); 2054 2055 /* Ask for link-up using current configuration */ 2056 memset(&link_params, 0, sizeof(link_params)); 2057 link_params.link_up = true; 2058 edev->ops->common->set_link(edev->cdev, &link_params); 2059 2060 qede_rdma_dev_event_open(edev); 2061 2062 edev->state = QEDE_STATE_OPEN; 2063 2064 DP_INFO(edev, "Ending successfully qede load\n"); 2065 2066 goto out; 2067 err4: 2068 qede_sync_free_irqs(edev); 2069 memset(&edev->int_info.msix_cnt, 0, sizeof(struct qed_int_info)); 2070 err3: 2071 qede_napi_disable_remove(edev); 2072 err2: 2073 qede_free_mem_load(edev); 2074 err1: 2075 edev->ops->common->set_fp_int(edev->cdev, 0); 2076 qede_free_fp_array(edev); 2077 edev->num_queues = 0; 2078 edev->fp_num_tx = 0; 2079 edev->fp_num_rx = 0; 2080 out: 2081 if (!is_locked) 2082 __qede_unlock(edev); 2083 2084 return rc; 2085 } 2086 2087 /* 'func' should be able to run between unload and reload assuming interface 2088 * is actually running, or afterwards in case it's currently DOWN. 2089 */ 2090 void qede_reload(struct qede_dev *edev, 2091 struct qede_reload_args *args, bool is_locked) 2092 { 2093 if (!is_locked) 2094 __qede_lock(edev); 2095 2096 /* Since qede_lock is held, internal state wouldn't change even 2097 * if netdev state would start transitioning. Check whether current 2098 * internal configuration indicates device is up, then reload. 2099 */ 2100 if (edev->state == QEDE_STATE_OPEN) { 2101 qede_unload(edev, QEDE_UNLOAD_NORMAL, true); 2102 if (args) 2103 args->func(edev, args); 2104 qede_load(edev, QEDE_LOAD_RELOAD, true); 2105 2106 /* Since no one is going to do it for us, re-configure */ 2107 qede_config_rx_mode(edev->ndev); 2108 } else if (args) { 2109 args->func(edev, args); 2110 } 2111 2112 if (!is_locked) 2113 __qede_unlock(edev); 2114 } 2115 2116 /* called with rtnl_lock */ 2117 static int qede_open(struct net_device *ndev) 2118 { 2119 struct qede_dev *edev = netdev_priv(ndev); 2120 int rc; 2121 2122 netif_carrier_off(ndev); 2123 2124 edev->ops->common->set_power_state(edev->cdev, PCI_D0); 2125 2126 rc = qede_load(edev, QEDE_LOAD_NORMAL, false); 2127 if (rc) 2128 return rc; 2129 2130 udp_tunnel_get_rx_info(ndev); 2131 2132 edev->ops->common->update_drv_state(edev->cdev, true); 2133 2134 return 0; 2135 } 2136 2137 static int qede_close(struct net_device *ndev) 2138 { 2139 struct qede_dev *edev = netdev_priv(ndev); 2140 2141 qede_unload(edev, QEDE_UNLOAD_NORMAL, false); 2142 2143 edev->ops->common->update_drv_state(edev->cdev, false); 2144 2145 return 0; 2146 } 2147 2148 static void qede_link_update(void *dev, struct qed_link_output *link) 2149 { 2150 struct qede_dev *edev = dev; 2151 2152 if (!netif_running(edev->ndev)) { 2153 DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not running\n"); 2154 return; 2155 } 2156 2157 if (link->link_up) { 2158 if (!netif_carrier_ok(edev->ndev)) { 2159 DP_NOTICE(edev, "Link is up\n"); 2160 netif_tx_start_all_queues(edev->ndev); 2161 netif_carrier_on(edev->ndev); 2162 } 2163 } else { 2164 if (netif_carrier_ok(edev->ndev)) { 2165 DP_NOTICE(edev, "Link is down\n"); 2166 netif_tx_disable(edev->ndev); 2167 netif_carrier_off(edev->ndev); 2168 } 2169 } 2170 } 2171