drivers/net/ethernet/qlogic/qede/qede_main.c

   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_set_features = qede_set_features,
 549         .ndo_get_stats64 = qede_get_stats64,
 550 #ifdef CONFIG_QED_SRIOV
 551         .ndo_set_vf_link_state = qede_set_vf_link_state,
 552         .ndo_set_vf_spoofchk = qede_set_vf_spoofchk,
 553         .ndo_get_vf_config = qede_get_vf_config,
 554         .ndo_set_vf_rate = qede_set_vf_rate,
 555 #endif
 556         .ndo_udp_tunnel_add = qede_udp_tunnel_add,
 557         .ndo_udp_tunnel_del = qede_udp_tunnel_del,
 558         .ndo_features_check = qede_features_check,
 559         .ndo_xdp = qede_xdp,
 560 #ifdef CONFIG_RFS_ACCEL
 561         .ndo_rx_flow_steer = qede_rx_flow_steer,
 562 #endif
 563 };
 564
 565 static const struct net_device_ops qede_netdev_vf_ops = {
 566         .ndo_open = qede_open,
 567         .ndo_stop = qede_close,
 568         .ndo_start_xmit = qede_start_xmit,
 569         .ndo_set_rx_mode = qede_set_rx_mode,
 570         .ndo_set_mac_address = qede_set_mac_addr,
 571         .ndo_validate_addr = eth_validate_addr,
 572         .ndo_change_mtu = qede_change_mtu,
 573         .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
 574         .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
 575         .ndo_set_features = qede_set_features,
 576         .ndo_get_stats64 = qede_get_stats64,
 577         .ndo_udp_tunnel_add = qede_udp_tunnel_add,
 578         .ndo_udp_tunnel_del = qede_udp_tunnel_del,
 579         .ndo_features_check = qede_features_check,
 580 };
 581
 582 static const struct net_device_ops qede_netdev_vf_xdp_ops = {
 583         .ndo_open = qede_open,
 584         .ndo_stop = qede_close,
 585         .ndo_start_xmit = qede_start_xmit,
 586         .ndo_set_rx_mode = qede_set_rx_mode,
 587         .ndo_set_mac_address = qede_set_mac_addr,
 588         .ndo_validate_addr = eth_validate_addr,
 589         .ndo_change_mtu = qede_change_mtu,
 590         .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
 591         .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
 592         .ndo_set_features = qede_set_features,
 593         .ndo_get_stats64 = qede_get_stats64,
 594         .ndo_udp_tunnel_add = qede_udp_tunnel_add,
 595         .ndo_udp_tunnel_del = qede_udp_tunnel_del,
 596         .ndo_features_check = qede_features_check,
 597         .ndo_xdp = qede_xdp,
 598 };
 599
 600 /* -------------------------------------------------------------------------
 601  * START OF PROBE / REMOVE
 602  * -------------------------------------------------------------------------
 603  */
 604
 605 static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev,
 606                                             struct pci_dev *pdev,
 607                                             struct qed_dev_eth_info *info,
 608                                             u32 dp_module, u8 dp_level)
 609 {
 610         struct net_device *ndev;
 611         struct qede_dev *edev;
 612
 613         ndev = alloc_etherdev_mqs(sizeof(*edev),
 614                                   info->num_queues, info->num_queues);
 615         if (!ndev) {
 616                 pr_err("etherdev allocation failed\n");
 617                 return NULL;
 618         }
 619
 620         edev = netdev_priv(ndev);
 621         edev->ndev = ndev;
 622         edev->cdev = cdev;
 623         edev->pdev = pdev;
 624         edev->dp_module = dp_module;
 625         edev->dp_level = dp_level;
 626         edev->ops = qed_ops;
 627         edev->q_num_rx_buffers = NUM_RX_BDS_DEF;
 628         edev->q_num_tx_buffers = NUM_TX_BDS_DEF;
 629
 630         DP_INFO(edev, "Allocated netdev with %d tx queues and %d rx queues\n",
 631                 info->num_queues, info->num_queues);
 632
 633         SET_NETDEV_DEV(ndev, &pdev->dev);
 634
 635         memset(&edev->stats, 0, sizeof(edev->stats));
 636         memcpy(&edev->dev_info, info, sizeof(*info));
 637
 638         /* As ethtool doesn't have the ability to show WoL behavior as
 639          * 'default', if device supports it declare it's enabled.
 640          */
 641         if (edev->dev_info.common.wol_support)
 642                 edev->wol_enabled = true;
 643
 644         INIT_LIST_HEAD(&edev->vlan_list);
 645
 646         return edev;
 647 }
 648
 649 static void qede_init_ndev(struct qede_dev *edev)
 650 {
 651         struct net_device *ndev = edev->ndev;
 652         struct pci_dev *pdev = edev->pdev;
 653         bool udp_tunnel_enable = false;
 654         netdev_features_t hw_features;
 655
 656         pci_set_drvdata(pdev, ndev);
 657
 658         ndev->mem_start = edev->dev_info.common.pci_mem_start;
 659         ndev->base_addr = ndev->mem_start;
 660         ndev->mem_end = edev->dev_info.common.pci_mem_end;
 661         ndev->irq = edev->dev_info.common.pci_irq;
 662
 663         ndev->watchdog_timeo = TX_TIMEOUT;
 664
 665         if (IS_VF(edev)) {
 666                 if (edev->dev_info.xdp_supported)
 667                         ndev->netdev_ops = &qede_netdev_vf_xdp_ops;
 668                 else
 669                         ndev->netdev_ops = &qede_netdev_vf_ops;
 670         } else {
 671                 ndev->netdev_ops = &qede_netdev_ops;
 672         }
 673
 674         qede_set_ethtool_ops(ndev);
 675
 676         ndev->priv_flags |= IFF_UNICAST_FLT;
 677
 678         /* user-changeble features */
 679         hw_features = NETIF_F_GRO | NETIF_F_SG |
 680                       NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
 681                       NETIF_F_TSO | NETIF_F_TSO6;
 682
 683         if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1)
 684                 hw_features |= NETIF_F_NTUPLE;
 685
 686         if (edev->dev_info.common.vxlan_enable ||
 687             edev->dev_info.common.geneve_enable)
 688                 udp_tunnel_enable = true;
 689
 690         if (udp_tunnel_enable || edev->dev_info.common.gre_enable) {
 691                 hw_features |= NETIF_F_TSO_ECN;
 692                 ndev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
 693                                         NETIF_F_SG | NETIF_F_TSO |
 694                                         NETIF_F_TSO_ECN | NETIF_F_TSO6 |
 695                                         NETIF_F_RXCSUM;
 696         }
 697
 698         if (udp_tunnel_enable) {
 699                 hw_features |= (NETIF_F_GSO_UDP_TUNNEL |
 700                                 NETIF_F_GSO_UDP_TUNNEL_CSUM);
 701                 ndev->hw_enc_features |= (NETIF_F_GSO_UDP_TUNNEL |
 702                                           NETIF_F_GSO_UDP_TUNNEL_CSUM);
 703         }
 704
 705         if (edev->dev_info.common.gre_enable) {
 706                 hw_features |= (NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM);
 707                 ndev->hw_enc_features |= (NETIF_F_GSO_GRE |
 708                                           NETIF_F_GSO_GRE_CSUM);
 709         }
 710
 711         ndev->vlan_features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
 712                               NETIF_F_HIGHDMA;
 713         ndev->features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
 714                          NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA |
 715                          NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_TX;
 716
 717         ndev->hw_features = hw_features;
 718
 719         /* MTU range: 46 - 9600 */
 720         ndev->min_mtu = ETH_ZLEN - ETH_HLEN;
 721         ndev->max_mtu = QEDE_MAX_JUMBO_PACKET_SIZE;
 722
 723         /* Set network device HW mac */
 724         ether_addr_copy(edev->ndev->dev_addr, edev->dev_info.common.hw_mac);
 725
 726         ndev->mtu = edev->dev_info.common.mtu;
 727 }
 728
 729 /* This function converts from 32b param to two params of level and module
 730  * Input 32b decoding:
 731  * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
 732  * 'happy' flow, e.g. memory allocation failed.
 733  * b30 - enable all INFO prints. INFO prints are for major steps in the flow
 734  * and provide important parameters.
 735  * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
 736  * module. VERBOSE prints are for tracking the specific flow in low level.
 737  *
 738  * Notice that the level should be that of the lowest required logs.
 739  */
 740 void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level)
 741 {
 742         *p_dp_level = QED_LEVEL_NOTICE;
 743         *p_dp_module = 0;
 744
 745         if (debug & QED_LOG_VERBOSE_MASK) {
 746                 *p_dp_level = QED_LEVEL_VERBOSE;
 747                 *p_dp_module = (debug & 0x3FFFFFFF);
 748         } else if (debug & QED_LOG_INFO_MASK) {
 749                 *p_dp_level = QED_LEVEL_INFO;
 750         } else if (debug & QED_LOG_NOTICE_MASK) {
 751                 *p_dp_level = QED_LEVEL_NOTICE;
 752         }
 753 }
 754
 755 static void qede_free_fp_array(struct qede_dev *edev)
 756 {
 757         if (edev->fp_array) {
 758                 struct qede_fastpath *fp;
 759                 int i;
 760
 761                 for_each_queue(i) {
 762                         fp = &edev->fp_array[i];
 763
 764                         kfree(fp->sb_info);
 765                         kfree(fp->rxq);
 766                         kfree(fp->xdp_tx);
 767                         kfree(fp->txq);
 768                 }
 769                 kfree(edev->fp_array);
 770         }
 771
 772         edev->num_queues = 0;
 773         edev->fp_num_tx = 0;
 774         edev->fp_num_rx = 0;
 775 }
 776
 777 static int qede_alloc_fp_array(struct qede_dev *edev)
 778 {
 779         u8 fp_combined, fp_rx = edev->fp_num_rx;
 780         struct qede_fastpath *fp;
 781         int i;
 782
 783         edev->fp_array = kcalloc(QEDE_QUEUE_CNT(edev),
 784                                  sizeof(*edev->fp_array), GFP_KERNEL);
 785         if (!edev->fp_array) {
 786                 DP_NOTICE(edev, "fp array allocation failed\n");
 787                 goto err;
 788         }
 789
 790         fp_combined = QEDE_QUEUE_CNT(edev) - fp_rx - edev->fp_num_tx;
 791
 792         /* Allocate the FP elements for Rx queues followed by combined and then
 793          * the Tx. This ordering should be maintained so that the respective
 794          * queues (Rx or Tx) will be together in the fastpath array and the
 795          * associated ids will be sequential.
 796          */
 797         for_each_queue(i) {
 798                 fp = &edev->fp_array[i];
 799
 800                 fp->sb_info = kzalloc(sizeof(*fp->sb_info), GFP_KERNEL);
 801                 if (!fp->sb_info) {
 802                         DP_NOTICE(edev, "sb info struct allocation failed\n");
 803                         goto err;
 804                 }
 805
 806                 if (fp_rx) {
 807                         fp->type = QEDE_FASTPATH_RX;
 808                         fp_rx--;
 809                 } else if (fp_combined) {
 810                         fp->type = QEDE_FASTPATH_COMBINED;
 811                         fp_combined--;
 812                 } else {
 813                         fp->type = QEDE_FASTPATH_TX;
 814                 }
 815
 816                 if (fp->type & QEDE_FASTPATH_TX) {
 817                         fp->txq = kzalloc(sizeof(*fp->txq), GFP_KERNEL);
 818                         if (!fp->txq)
 819                                 goto err;
 820                 }
 821
 822                 if (fp->type & QEDE_FASTPATH_RX) {
 823                         fp->rxq = kzalloc(sizeof(*fp->rxq), GFP_KERNEL);
 824                         if (!fp->rxq)
 825                                 goto err;
 826
 827                         if (edev->xdp_prog) {
 828                                 fp->xdp_tx = kzalloc(sizeof(*fp->xdp_tx),
 829                                                      GFP_KERNEL);
 830                                 if (!fp->xdp_tx)
 831                                         goto err;
 832                                 fp->type |= QEDE_FASTPATH_XDP;
 833                         }
 834                 }
 835         }
 836
 837         return 0;
 838 err:
 839         qede_free_fp_array(edev);
 840         return -ENOMEM;
 841 }
 842
 843 static void qede_sp_task(struct work_struct *work)
 844 {
 845         struct qede_dev *edev = container_of(work, struct qede_dev,
 846                                              sp_task.work);
 847
 848         __qede_lock(edev);
 849
 850         if (test_and_clear_bit(QEDE_SP_RX_MODE, &edev->sp_flags))
 851                 if (edev->state == QEDE_STATE_OPEN)
 852                         qede_config_rx_mode(edev->ndev);
 853
 854 #ifdef CONFIG_RFS_ACCEL
 855         if (test_and_clear_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags)) {
 856                 if (edev->state == QEDE_STATE_OPEN)
 857                         qede_process_arfs_filters(edev, false);
 858         }
 859 #endif
 860         __qede_unlock(edev);
 861 }
 862
 863 static void qede_update_pf_params(struct qed_dev *cdev)
 864 {
 865         struct qed_pf_params pf_params;
 866
 867         /* 64 rx + 64 tx + 64 XDP */
 868         memset(&pf_params, 0, sizeof(struct qed_pf_params));
 869         pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * 3;
 870
 871         /* Same for VFs - make sure they'll have sufficient connections
 872          * to support XDP Tx queues.
 873          */
 874         pf_params.eth_pf_params.num_vf_cons = 48;
 875
 876         pf_params.eth_pf_params.num_arfs_filters = QEDE_RFS_MAX_FLTR;
 877         qed_ops->common->update_pf_params(cdev, &pf_params);
 878 }
 879
 880 #define QEDE_FW_VER_STR_SIZE    80
 881
 882 static void qede_log_probe(struct qede_dev *edev)
 883 {
 884         struct qed_dev_info *p_dev_info = &edev->dev_info.common;
 885         u8 buf[QEDE_FW_VER_STR_SIZE];
 886         size_t left_size;
 887
 888         snprintf(buf, QEDE_FW_VER_STR_SIZE,
 889                  "Storm FW %d.%d.%d.%d, Management FW %d.%d.%d.%d",
 890                  p_dev_info->fw_major, p_dev_info->fw_minor, p_dev_info->fw_rev,
 891                  p_dev_info->fw_eng,
 892                  (p_dev_info->mfw_rev & QED_MFW_VERSION_3_MASK) >>
 893                  QED_MFW_VERSION_3_OFFSET,
 894                  (p_dev_info->mfw_rev & QED_MFW_VERSION_2_MASK) >>
 895                  QED_MFW_VERSION_2_OFFSET,
 896                  (p_dev_info->mfw_rev & QED_MFW_VERSION_1_MASK) >>
 897                  QED_MFW_VERSION_1_OFFSET,
 898                  (p_dev_info->mfw_rev & QED_MFW_VERSION_0_MASK) >>
 899                  QED_MFW_VERSION_0_OFFSET);
 900
 901         left_size = QEDE_FW_VER_STR_SIZE - strlen(buf);
 902         if (p_dev_info->mbi_version && left_size)
 903                 snprintf(buf + strlen(buf), left_size,
 904                          " [MBI %d.%d.%d]",
 905                          (p_dev_info->mbi_version & QED_MBI_VERSION_2_MASK) >>
 906                          QED_MBI_VERSION_2_OFFSET,
 907                          (p_dev_info->mbi_version & QED_MBI_VERSION_1_MASK) >>
 908                          QED_MBI_VERSION_1_OFFSET,
 909                          (p_dev_info->mbi_version & QED_MBI_VERSION_0_MASK) >>
 910                          QED_MBI_VERSION_0_OFFSET);
 911
 912         pr_info("qede %02x:%02x.%02x: %s [%s]\n", edev->pdev->bus->number,
 913                 PCI_SLOT(edev->pdev->devfn), PCI_FUNC(edev->pdev->devfn),
 914                 buf, edev->ndev->name);
 915 }
 916
 917 enum qede_probe_mode {
 918         QEDE_PROBE_NORMAL,
 919 };
 920
 921 static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
 922                         bool is_vf, enum qede_probe_mode mode)
 923 {
 924         struct qed_probe_params probe_params;
 925         struct qed_slowpath_params sp_params;
 926         struct qed_dev_eth_info dev_info;
 927         struct qede_dev *edev;
 928         struct qed_dev *cdev;
 929         int rc;
 930
 931         if (unlikely(dp_level & QED_LEVEL_INFO))
 932                 pr_notice("Starting qede probe\n");
 933
 934         memset(&probe_params, 0, sizeof(probe_params));
 935         probe_params.protocol = QED_PROTOCOL_ETH;
 936         probe_params.dp_module = dp_module;
 937         probe_params.dp_level = dp_level;
 938         probe_params.is_vf = is_vf;
 939         cdev = qed_ops->common->probe(pdev, &probe_params);
 940         if (!cdev) {
 941                 rc = -ENODEV;
 942                 goto err0;
 943         }
 944
 945         qede_update_pf_params(cdev);
 946
 947         /* Start the Slowpath-process */
 948         memset(&sp_params, 0, sizeof(sp_params));
 949         sp_params.int_mode = QED_INT_MODE_MSIX;
 950         sp_params.drv_major = QEDE_MAJOR_VERSION;
 951         sp_params.drv_minor = QEDE_MINOR_VERSION;
 952         sp_params.drv_rev = QEDE_REVISION_VERSION;
 953         sp_params.drv_eng = QEDE_ENGINEERING_VERSION;
 954         strlcpy(sp_params.name, "qede LAN", QED_DRV_VER_STR_SIZE);
 955         rc = qed_ops->common->slowpath_start(cdev, &sp_params);
 956         if (rc) {
 957                 pr_notice("Cannot start slowpath\n");
 958                 goto err1;
 959         }
 960
 961         /* Learn information crucial for qede to progress */
 962         rc = qed_ops->fill_dev_info(cdev, &dev_info);
 963         if (rc)
 964                 goto err2;
 965
 966         edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module,
 967                                    dp_level);
 968         if (!edev) {
 969                 rc = -ENOMEM;
 970                 goto err2;
 971         }
 972
 973         if (is_vf)
 974                 edev->flags |= QEDE_FLAG_IS_VF;
 975
 976         qede_init_ndev(edev);
 977
 978         rc = qede_rdma_dev_add(edev);
 979         if (rc)
 980                 goto err3;
 981
 982         /* Prepare the lock prior to the registeration of the netdev,
 983          * as once it's registered we might reach flows requiring it
 984          * [it's even possible to reach a flow needing it directly
 985          * from there, although it's unlikely].
 986          */
 987         INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task);
 988         mutex_init(&edev->qede_lock);
 989         rc = register_netdev(edev->ndev);
 990         if (rc) {
 991                 DP_NOTICE(edev, "Cannot register net-device\n");
 992                 goto err4;
 993         }
 994
 995         edev->ops->common->set_name(cdev, edev->ndev->name);
 996
 997         /* PTP not supported on VFs */
 998         if (!is_vf)
 999                 qede_ptp_enable(edev, true);
1000
1001         edev->ops->register_ops(cdev, &qede_ll_ops, edev);
1002
1003 #ifdef CONFIG_DCB
1004         if (!IS_VF(edev))
1005                 qede_set_dcbnl_ops(edev->ndev);
1006 #endif
1007
1008         edev->rx_copybreak = QEDE_RX_HDR_SIZE;
1009
1010         qede_log_probe(edev);
1011         return 0;
1012
1013 err4:
1014         qede_rdma_dev_remove(edev);
1015 err3:
1016         free_netdev(edev->ndev);
1017 err2:
1018         qed_ops->common->slowpath_stop(cdev);
1019 err1:
1020         qed_ops->common->remove(cdev);
1021 err0:
1022         return rc;
1023 }
1024
1025 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1026 {
1027         bool is_vf = false;
1028         u32 dp_module = 0;
1029         u8 dp_level = 0;
1030
1031         switch ((enum qede_pci_private)id->driver_data) {
1032         case QEDE_PRIVATE_VF:
1033                 if (debug & QED_LOG_VERBOSE_MASK)
1034                         dev_err(&pdev->dev, "Probing a VF\n");
1035                 is_vf = true;
1036                 break;
1037         default:
1038                 if (debug & QED_LOG_VERBOSE_MASK)
1039                         dev_err(&pdev->dev, "Probing a PF\n");
1040         }
1041
1042         qede_config_debug(debug, &dp_module, &dp_level);
1043
1044         return __qede_probe(pdev, dp_module, dp_level, is_vf,
1045                             QEDE_PROBE_NORMAL);
1046 }
1047
1048 enum qede_remove_mode {
1049         QEDE_REMOVE_NORMAL,
1050 };
1051
1052 static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode)
1053 {
1054         struct net_device *ndev = pci_get_drvdata(pdev);
1055         struct qede_dev *edev = netdev_priv(ndev);
1056         struct qed_dev *cdev = edev->cdev;
1057
1058         DP_INFO(edev, "Starting qede_remove\n");
1059
1060         unregister_netdev(ndev);
1061         cancel_delayed_work_sync(&edev->sp_task);
1062
1063         qede_ptp_disable(edev);
1064
1065         qede_rdma_dev_remove(edev);
1066
1067         edev->ops->common->set_power_state(cdev, PCI_D0);
1068
1069         pci_set_drvdata(pdev, NULL);
1070
1071         /* Release edev's reference to XDP's bpf if such exist */
1072         if (edev->xdp_prog)
1073                 bpf_prog_put(edev->xdp_prog);
1074
1075         /* Use global ops since we've freed edev */
1076         qed_ops->common->slowpath_stop(cdev);
1077         if (system_state == SYSTEM_POWER_OFF)
1078                 return;
1079         qed_ops->common->remove(cdev);
1080
1081         /* Since this can happen out-of-sync with other flows,
1082          * don't release the netdevice until after slowpath stop
1083          * has been called to guarantee various other contexts
1084          * [e.g., QED register callbacks] won't break anything when
1085          * accessing the netdevice.
1086          */
1087          free_netdev(ndev);
1088
1089         dev_info(&pdev->dev, "Ending qede_remove successfully\n");
1090 }
1091
1092 static void qede_remove(struct pci_dev *pdev)
1093 {
1094         __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1095 }
1096
1097 static void qede_shutdown(struct pci_dev *pdev)
1098 {
1099         __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1100 }
1101
1102 /* -------------------------------------------------------------------------
1103  * START OF LOAD / UNLOAD
1104  * -------------------------------------------------------------------------
1105  */
1106
1107 static int qede_set_num_queues(struct qede_dev *edev)
1108 {
1109         int rc;
1110         u16 rss_num;
1111
1112         /* Setup queues according to possible resources*/
1113         if (edev->req_queues)
1114                 rss_num = edev->req_queues;
1115         else
1116                 rss_num = netif_get_num_default_rss_queues() *
1117                           edev->dev_info.common.num_hwfns;
1118
1119         rss_num = min_t(u16, QEDE_MAX_RSS_CNT(edev), rss_num);
1120
1121         rc = edev->ops->common->set_fp_int(edev->cdev, rss_num);
1122         if (rc > 0) {
1123                 /* Managed to request interrupts for our queues */
1124                 edev->num_queues = rc;
1125                 DP_INFO(edev, "Managed %d [of %d] RSS queues\n",
1126                         QEDE_QUEUE_CNT(edev), rss_num);
1127                 rc = 0;
1128         }
1129
1130         edev->fp_num_tx = edev->req_num_tx;
1131         edev->fp_num_rx = edev->req_num_rx;
1132
1133         return rc;
1134 }
1135
1136 static void qede_free_mem_sb(struct qede_dev *edev, struct qed_sb_info *sb_info,
1137                              u16 sb_id)
1138 {
1139         if (sb_info->sb_virt) {
1140                 edev->ops->common->sb_release(edev->cdev, sb_info, sb_id);
1141                 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_info->sb_virt),
1142                                   (void *)sb_info->sb_virt, sb_info->sb_phys);
1143                 memset(sb_info, 0, sizeof(*sb_info));
1144         }
1145 }
1146
1147 /* This function allocates fast-path status block memory */
1148 static int qede_alloc_mem_sb(struct qede_dev *edev,
1149                              struct qed_sb_info *sb_info, u16 sb_id)
1150 {
1151         struct status_block *sb_virt;
1152         dma_addr_t sb_phys;
1153         int rc;
1154
1155         sb_virt = dma_alloc_coherent(&edev->pdev->dev,
1156                                      sizeof(*sb_virt), &sb_phys, GFP_KERNEL);
1157         if (!sb_virt) {
1158                 DP_ERR(edev, "Status block allocation failed\n");
1159                 return -ENOMEM;
1160         }
1161
1162         rc = edev->ops->common->sb_init(edev->cdev, sb_info,
1163                                         sb_virt, sb_phys, sb_id,
1164                                         QED_SB_TYPE_L2_QUEUE);
1165         if (rc) {
1166                 DP_ERR(edev, "Status block initialization failed\n");
1167                 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_virt),
1168                                   sb_virt, sb_phys);
1169                 return rc;
1170         }
1171
1172         return 0;
1173 }
1174
1175 static void qede_free_rx_buffers(struct qede_dev *edev,
1176                                  struct qede_rx_queue *rxq)
1177 {
1178         u16 i;
1179
1180         for (i = rxq->sw_rx_cons; i != rxq->sw_rx_prod; i++) {
1181                 struct sw_rx_data *rx_buf;
1182                 struct page *data;
1183
1184                 rx_buf = &rxq->sw_rx_ring[i & NUM_RX_BDS_MAX];
1185                 data = rx_buf->data;
1186
1187                 dma_unmap_page(&edev->pdev->dev,
1188                                rx_buf->mapping, PAGE_SIZE, rxq->data_direction);
1189
1190                 rx_buf->data = NULL;
1191                 __free_page(data);
1192         }
1193 }
1194
1195 static void qede_free_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1196 {
1197         int i;
1198
1199         if (edev->gro_disable)
1200                 return;
1201
1202         for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1203                 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1204                 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1205
1206                 if (replace_buf->data) {
1207                         dma_unmap_page(&edev->pdev->dev,
1208                                        replace_buf->mapping,
1209                                        PAGE_SIZE, DMA_FROM_DEVICE);
1210                         __free_page(replace_buf->data);
1211                 }
1212         }
1213 }
1214
1215 static void qede_free_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1216 {
1217         qede_free_sge_mem(edev, rxq);
1218
1219         /* Free rx buffers */
1220         qede_free_rx_buffers(edev, rxq);
1221
1222         /* Free the parallel SW ring */
1223         kfree(rxq->sw_rx_ring);
1224
1225         /* Free the real RQ ring used by FW */
1226         edev->ops->common->chain_free(edev->cdev, &rxq->rx_bd_ring);
1227         edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring);
1228 }
1229
1230 static int qede_alloc_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1231 {
1232         dma_addr_t mapping;
1233         int i;
1234
1235         /* Don't perform FW aggregations in case of XDP */
1236         if (edev->xdp_prog)
1237                 edev->gro_disable = 1;
1238
1239         if (edev->gro_disable)
1240                 return 0;
1241
1242         if (edev->ndev->mtu > PAGE_SIZE) {
1243                 edev->gro_disable = 1;
1244                 return 0;
1245         }
1246
1247         for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1248                 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1249                 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1250
1251                 replace_buf->data = alloc_pages(GFP_ATOMIC, 0);
1252                 if (unlikely(!replace_buf->data)) {
1253                         DP_NOTICE(edev,
1254                                   "Failed to allocate TPA skb pool [replacement buffer]\n");
1255                         goto err;
1256                 }
1257
1258                 mapping = dma_map_page(&edev->pdev->dev, replace_buf->data, 0,
1259                                        PAGE_SIZE, DMA_FROM_DEVICE);
1260                 if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) {
1261                         DP_NOTICE(edev,
1262                                   "Failed to map TPA replacement buffer\n");
1263                         goto err;
1264                 }
1265
1266                 replace_buf->mapping = mapping;
1267                 tpa_info->buffer.page_offset = 0;
1268                 tpa_info->buffer_mapping = mapping;
1269                 tpa_info->state = QEDE_AGG_STATE_NONE;
1270         }
1271
1272         return 0;
1273 err:
1274         qede_free_sge_mem(edev, rxq);
1275         edev->gro_disable = 1;
1276         return -ENOMEM;
1277 }
1278
1279 /* This function allocates all memory needed per Rx queue */
1280 static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1281 {
1282         int i, rc, size;
1283
1284         rxq->num_rx_buffers = edev->q_num_rx_buffers;
1285
1286         rxq->rx_buf_size = NET_IP_ALIGN + ETH_OVERHEAD + edev->ndev->mtu;
1287         rxq->rx_headroom = edev->xdp_prog ? XDP_PACKET_HEADROOM : 0;
1288
1289         /* Make sure that the headroom and  payload fit in a single page */
1290         if (rxq->rx_buf_size + rxq->rx_headroom > PAGE_SIZE)
1291                 rxq->rx_buf_size = PAGE_SIZE - rxq->rx_headroom;
1292
1293         /* Segment size to spilt a page in multiple equal parts,
1294          * unless XDP is used in which case we'd use the entire page.
1295          */
1296         if (!edev->xdp_prog)
1297                 rxq->rx_buf_seg_size = roundup_pow_of_two(rxq->rx_buf_size);
1298         else
1299                 rxq->rx_buf_seg_size = PAGE_SIZE;
1300
1301         /* Allocate the parallel driver ring for Rx buffers */
1302         size = sizeof(*rxq->sw_rx_ring) * RX_RING_SIZE;
1303         rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL);
1304         if (!rxq->sw_rx_ring) {
1305                 DP_ERR(edev, "Rx buffers ring allocation failed\n");
1306                 rc = -ENOMEM;
1307                 goto err;
1308         }
1309
1310         /* Allocate FW Rx ring  */
1311         rc = edev->ops->common->chain_alloc(edev->cdev,
1312                                             QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1313                                             QED_CHAIN_MODE_NEXT_PTR,
1314                                             QED_CHAIN_CNT_TYPE_U16,
1315                                             RX_RING_SIZE,
1316                                             sizeof(struct eth_rx_bd),
1317                                             &rxq->rx_bd_ring, NULL);
1318         if (rc)
1319                 goto err;
1320
1321         /* Allocate FW completion ring */
1322         rc = edev->ops->common->chain_alloc(edev->cdev,
1323                                             QED_CHAIN_USE_TO_CONSUME,
1324                                             QED_CHAIN_MODE_PBL,
1325                                             QED_CHAIN_CNT_TYPE_U16,
1326                                             RX_RING_SIZE,
1327                                             sizeof(union eth_rx_cqe),
1328                                             &rxq->rx_comp_ring, NULL);
1329         if (rc)
1330                 goto err;
1331
1332         /* Allocate buffers for the Rx ring */
1333         rxq->filled_buffers = 0;
1334         for (i = 0; i < rxq->num_rx_buffers; i++) {
1335                 rc = qede_alloc_rx_buffer(rxq, false);
1336                 if (rc) {
1337                         DP_ERR(edev,
1338                                "Rx buffers allocation failed at index %d\n", i);
1339                         goto err;
1340                 }
1341         }
1342
1343         rc = qede_alloc_sge_mem(edev, rxq);
1344 err:
1345         return rc;
1346 }
1347
1348 static void qede_free_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1349 {
1350         /* Free the parallel SW ring */
1351         if (txq->is_xdp)
1352                 kfree(txq->sw_tx_ring.xdp);
1353         else
1354                 kfree(txq->sw_tx_ring.skbs);
1355
1356         /* Free the real RQ ring used by FW */
1357         edev->ops->common->chain_free(edev->cdev, &txq->tx_pbl);
1358 }
1359
1360 /* This function allocates all memory needed per Tx queue */
1361 static int qede_alloc_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1362 {
1363         union eth_tx_bd_types *p_virt;
1364         int size, rc;
1365
1366         txq->num_tx_buffers = edev->q_num_tx_buffers;
1367
1368         /* Allocate the parallel driver ring for Tx buffers */
1369         if (txq->is_xdp) {
1370                 size = sizeof(*txq->sw_tx_ring.xdp) * txq->num_tx_buffers;
1371                 txq->sw_tx_ring.xdp = kzalloc(size, GFP_KERNEL);
1372                 if (!txq->sw_tx_ring.xdp)
1373                         goto err;
1374         } else {
1375                 size = sizeof(*txq->sw_tx_ring.skbs) * txq->num_tx_buffers;
1376                 txq->sw_tx_ring.skbs = kzalloc(size, GFP_KERNEL);
1377                 if (!txq->sw_tx_ring.skbs)
1378                         goto err;
1379         }
1380
1381         rc = edev->ops->common->chain_alloc(edev->cdev,
1382                                             QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1383                                             QED_CHAIN_MODE_PBL,
1384                                             QED_CHAIN_CNT_TYPE_U16,
1385                                             txq->num_tx_buffers,
1386                                             sizeof(*p_virt),
1387                                             &txq->tx_pbl, NULL);
1388         if (rc)
1389                 goto err;
1390
1391         return 0;
1392
1393 err:
1394         qede_free_mem_txq(edev, txq);
1395         return -ENOMEM;
1396 }
1397
1398 /* This function frees all memory of a single fp */
1399 static void qede_free_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1400 {
1401         qede_free_mem_sb(edev, fp->sb_info, fp->id);
1402
1403         if (fp->type & QEDE_FASTPATH_RX)
1404                 qede_free_mem_rxq(edev, fp->rxq);
1405
1406         if (fp->type & QEDE_FASTPATH_XDP)
1407                 qede_free_mem_txq(edev, fp->xdp_tx);
1408
1409         if (fp->type & QEDE_FASTPATH_TX)
1410                 qede_free_mem_txq(edev, fp->txq);
1411 }
1412
1413 /* This function allocates all memory needed for a single fp (i.e. an entity
1414  * which contains status block, one rx queue and/or multiple per-TC tx queues.
1415  */
1416 static int qede_alloc_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1417 {
1418         int rc = 0;
1419
1420         rc = qede_alloc_mem_sb(edev, fp->sb_info, fp->id);
1421         if (rc)
1422                 goto out;
1423
1424         if (fp->type & QEDE_FASTPATH_RX) {
1425                 rc = qede_alloc_mem_rxq(edev, fp->rxq);
1426                 if (rc)
1427                         goto out;
1428         }
1429
1430         if (fp->type & QEDE_FASTPATH_XDP) {
1431                 rc = qede_alloc_mem_txq(edev, fp->xdp_tx);
1432                 if (rc)
1433                         goto out;
1434         }
1435
1436         if (fp->type & QEDE_FASTPATH_TX) {
1437                 rc = qede_alloc_mem_txq(edev, fp->txq);
1438                 if (rc)
1439                         goto out;
1440         }
1441
1442 out:
1443         return rc;
1444 }
1445
1446 static void qede_free_mem_load(struct qede_dev *edev)
1447 {
1448         int i;
1449
1450         for_each_queue(i) {
1451                 struct qede_fastpath *fp = &edev->fp_array[i];
1452
1453                 qede_free_mem_fp(edev, fp);
1454         }
1455 }
1456
1457 /* This function allocates all qede memory at NIC load. */
1458 static int qede_alloc_mem_load(struct qede_dev *edev)
1459 {
1460         int rc = 0, queue_id;
1461
1462         for (queue_id = 0; queue_id < QEDE_QUEUE_CNT(edev); queue_id++) {
1463                 struct qede_fastpath *fp = &edev->fp_array[queue_id];
1464
1465                 rc = qede_alloc_mem_fp(edev, fp);
1466                 if (rc) {
1467                         DP_ERR(edev,
1468                                "Failed to allocate memory for fastpath - rss id = %d\n",
1469                                queue_id);
1470                         qede_free_mem_load(edev);
1471                         return rc;
1472                 }
1473         }
1474
1475         return 0;
1476 }
1477
1478 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
1479 static void qede_init_fp(struct qede_dev *edev)
1480 {
1481         int queue_id, rxq_index = 0, txq_index = 0;
1482         struct qede_fastpath *fp;
1483
1484         for_each_queue(queue_id) {
1485                 fp = &edev->fp_array[queue_id];
1486
1487                 fp->edev = edev;
1488                 fp->id = queue_id;
1489
1490                 if (fp->type & QEDE_FASTPATH_XDP) {
1491                         fp->xdp_tx->index = QEDE_TXQ_IDX_TO_XDP(edev,
1492                                                                 rxq_index);
1493                         fp->xdp_tx->is_xdp = 1;
1494                 }
1495
1496                 if (fp->type & QEDE_FASTPATH_RX) {
1497                         fp->rxq->rxq_id = rxq_index++;
1498
1499                         /* Determine how to map buffers for this queue */
1500                         if (fp->type & QEDE_FASTPATH_XDP)
1501                                 fp->rxq->data_direction = DMA_BIDIRECTIONAL;
1502                         else
1503                                 fp->rxq->data_direction = DMA_FROM_DEVICE;
1504                         fp->rxq->dev = &edev->pdev->dev;
1505                 }
1506
1507                 if (fp->type & QEDE_FASTPATH_TX) {
1508                         fp->txq->index = txq_index++;
1509                         if (edev->dev_info.is_legacy)
1510                                 fp->txq->is_legacy = 1;
1511                         fp->txq->dev = &edev->pdev->dev;
1512                 }
1513
1514                 snprintf(fp->name, sizeof(fp->name), "%s-fp-%d",
1515                          edev->ndev->name, queue_id);
1516         }
1517
1518         edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO);
1519 }
1520
1521 static int qede_set_real_num_queues(struct qede_dev *edev)
1522 {
1523         int rc = 0;
1524
1525         rc = netif_set_real_num_tx_queues(edev->ndev, QEDE_TSS_COUNT(edev));
1526         if (rc) {
1527                 DP_NOTICE(edev, "Failed to set real number of Tx queues\n");
1528                 return rc;
1529         }
1530
1531         rc = netif_set_real_num_rx_queues(edev->ndev, QEDE_RSS_COUNT(edev));
1532         if (rc) {
1533                 DP_NOTICE(edev, "Failed to set real number of Rx queues\n");
1534                 return rc;
1535         }
1536
1537         return 0;
1538 }
1539
1540 static void qede_napi_disable_remove(struct qede_dev *edev)
1541 {
1542         int i;
1543
1544         for_each_queue(i) {
1545                 napi_disable(&edev->fp_array[i].napi);
1546
1547                 netif_napi_del(&edev->fp_array[i].napi);
1548         }
1549 }
1550
1551 static void qede_napi_add_enable(struct qede_dev *edev)
1552 {
1553         int i;
1554
1555         /* Add NAPI objects */
1556         for_each_queue(i) {
1557                 netif_napi_add(edev->ndev, &edev->fp_array[i].napi,
1558                                qede_poll, NAPI_POLL_WEIGHT);
1559                 napi_enable(&edev->fp_array[i].napi);
1560         }
1561 }
1562
1563 static void qede_sync_free_irqs(struct qede_dev *edev)
1564 {
1565         int i;
1566
1567         for (i = 0; i < edev->int_info.used_cnt; i++) {
1568                 if (edev->int_info.msix_cnt) {
1569                         synchronize_irq(edev->int_info.msix[i].vector);
1570                         free_irq(edev->int_info.msix[i].vector,
1571                                  &edev->fp_array[i]);
1572                 } else {
1573                         edev->ops->common->simd_handler_clean(edev->cdev, i);
1574                 }
1575         }
1576
1577         edev->int_info.used_cnt = 0;
1578 }
1579
1580 static int qede_req_msix_irqs(struct qede_dev *edev)
1581 {
1582         int i, rc;
1583
1584         /* Sanitize number of interrupts == number of prepared RSS queues */
1585         if (QEDE_QUEUE_CNT(edev) > edev->int_info.msix_cnt) {
1586                 DP_ERR(edev,
1587                        "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
1588                        QEDE_QUEUE_CNT(edev), edev->int_info.msix_cnt);
1589                 return -EINVAL;
1590         }
1591
1592         for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) {
1593 #ifdef CONFIG_RFS_ACCEL
1594                 struct qede_fastpath *fp = &edev->fp_array[i];
1595
1596                 if (edev->ndev->rx_cpu_rmap && (fp->type & QEDE_FASTPATH_RX)) {
1597                         rc = irq_cpu_rmap_add(edev->ndev->rx_cpu_rmap,
1598                                               edev->int_info.msix[i].vector);
1599                         if (rc) {
1600                                 DP_ERR(edev, "Failed to add CPU rmap\n");
1601                                 qede_free_arfs(edev);
1602                         }
1603                 }
1604 #endif
1605                 rc = request_irq(edev->int_info.msix[i].vector,
1606                                  qede_msix_fp_int, 0, edev->fp_array[i].name,
1607                                  &edev->fp_array[i]);
1608                 if (rc) {
1609                         DP_ERR(edev, "Request fp %d irq failed\n", i);
1610                         qede_sync_free_irqs(edev);
1611                         return rc;
1612                 }
1613                 DP_VERBOSE(edev, NETIF_MSG_INTR,
1614                            "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
1615                            edev->fp_array[i].name, i,
1616                            &edev->fp_array[i]);
1617                 edev->int_info.used_cnt++;
1618         }
1619
1620         return 0;
1621 }
1622
1623 static void qede_simd_fp_handler(void *cookie)
1624 {
1625         struct qede_fastpath *fp = (struct qede_fastpath *)cookie;
1626
1627         napi_schedule_irqoff(&fp->napi);
1628 }
1629
1630 static int qede_setup_irqs(struct qede_dev *edev)
1631 {
1632         int i, rc = 0;
1633
1634         /* Learn Interrupt configuration */
1635         rc = edev->ops->common->get_fp_int(edev->cdev, &edev->int_info);
1636         if (rc)
1637                 return rc;
1638
1639         if (edev->int_info.msix_cnt) {
1640                 rc = qede_req_msix_irqs(edev);
1641                 if (rc)
1642                         return rc;
1643                 edev->ndev->irq = edev->int_info.msix[0].vector;
1644         } else {
1645                 const struct qed_common_ops *ops;
1646
1647                 /* qed should learn receive the RSS ids and callbacks */
1648                 ops = edev->ops->common;
1649                 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++)
1650                         ops->simd_handler_config(edev->cdev,
1651                                                  &edev->fp_array[i], i,
1652                                                  qede_simd_fp_handler);
1653                 edev->int_info.used_cnt = QEDE_QUEUE_CNT(edev);
1654         }
1655         return 0;
1656 }
1657
1658 static int qede_drain_txq(struct qede_dev *edev,
1659                           struct qede_tx_queue *txq, bool allow_drain)
1660 {
1661         int rc, cnt = 1000;
1662
1663         while (txq->sw_tx_cons != txq->sw_tx_prod) {
1664                 if (!cnt) {
1665                         if (allow_drain) {
1666                                 DP_NOTICE(edev,
1667                                           "Tx queue[%d] is stuck, requesting MCP to drain\n",
1668                                           txq->index);
1669                                 rc = edev->ops->common->drain(edev->cdev);
1670                                 if (rc)
1671                                         return rc;
1672                                 return qede_drain_txq(edev, txq, false);
1673                         }
1674                         DP_NOTICE(edev,
1675                                   "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
1676                                   txq->index, txq->sw_tx_prod,
1677                                   txq->sw_tx_cons);
1678                         return -ENODEV;
1679                 }
1680                 cnt--;
1681                 usleep_range(1000, 2000);
1682                 barrier();
1683         }
1684
1685         /* FW finished processing, wait for HW to transmit all tx packets */
1686         usleep_range(1000, 2000);
1687
1688         return 0;
1689 }
1690
1691 static int qede_stop_txq(struct qede_dev *edev,
1692                          struct qede_tx_queue *txq, int rss_id)
1693 {
1694         return edev->ops->q_tx_stop(edev->cdev, rss_id, txq->handle);
1695 }
1696
1697 static int qede_stop_queues(struct qede_dev *edev)
1698 {
1699         struct qed_update_vport_params *vport_update_params;
1700         struct qed_dev *cdev = edev->cdev;
1701         struct qede_fastpath *fp;
1702         int rc, i;
1703
1704         /* Disable the vport */
1705         vport_update_params = vzalloc(sizeof(*vport_update_params));
1706         if (!vport_update_params)
1707                 return -ENOMEM;
1708
1709         vport_update_params->vport_id = 0;
1710         vport_update_params->update_vport_active_flg = 1;
1711         vport_update_params->vport_active_flg = 0;
1712         vport_update_params->update_rss_flg = 0;
1713
1714         rc = edev->ops->vport_update(cdev, vport_update_params);
1715         vfree(vport_update_params);
1716
1717         if (rc) {
1718                 DP_ERR(edev, "Failed to update vport\n");
1719                 return rc;
1720         }
1721
1722         /* Flush Tx queues. If needed, request drain from MCP */
1723         for_each_queue(i) {
1724                 fp = &edev->fp_array[i];
1725
1726                 if (fp->type & QEDE_FASTPATH_TX) {
1727                         rc = qede_drain_txq(edev, fp->txq, true);
1728                         if (rc)
1729                                 return rc;
1730                 }
1731
1732                 if (fp->type & QEDE_FASTPATH_XDP) {
1733                         rc = qede_drain_txq(edev, fp->xdp_tx, true);
1734                         if (rc)
1735                                 return rc;
1736                 }
1737         }
1738
1739         /* Stop all Queues in reverse order */
1740         for (i = QEDE_QUEUE_CNT(edev) - 1; i >= 0; i--) {
1741                 fp = &edev->fp_array[i];
1742
1743                 /* Stop the Tx Queue(s) */
1744                 if (fp->type & QEDE_FASTPATH_TX) {
1745                         rc = qede_stop_txq(edev, fp->txq, i);
1746                         if (rc)
1747                                 return rc;
1748                 }
1749
1750                 /* Stop the Rx Queue */
1751                 if (fp->type & QEDE_FASTPATH_RX) {
1752                         rc = edev->ops->q_rx_stop(cdev, i, fp->rxq->handle);
1753                         if (rc) {
1754                                 DP_ERR(edev, "Failed to stop RXQ #%d\n", i);
1755                                 return rc;
1756                         }
1757                 }
1758
1759                 /* Stop the XDP forwarding queue */
1760                 if (fp->type & QEDE_FASTPATH_XDP) {
1761                         rc = qede_stop_txq(edev, fp->xdp_tx, i);
1762                         if (rc)
1763                                 return rc;
1764
1765                         bpf_prog_put(fp->rxq->xdp_prog);
1766                 }
1767         }
1768
1769         /* Stop the vport */
1770         rc = edev->ops->vport_stop(cdev, 0);
1771         if (rc)
1772                 DP_ERR(edev, "Failed to stop VPORT\n");
1773
1774         return rc;
1775 }
1776
1777 static int qede_start_txq(struct qede_dev *edev,
1778                           struct qede_fastpath *fp,
1779                           struct qede_tx_queue *txq, u8 rss_id, u16 sb_idx)
1780 {
1781         dma_addr_t phys_table = qed_chain_get_pbl_phys(&txq->tx_pbl);
1782         u32 page_cnt = qed_chain_get_page_cnt(&txq->tx_pbl);
1783         struct qed_queue_start_common_params params;
1784         struct qed_txq_start_ret_params ret_params;
1785         int rc;
1786
1787         memset(&params, 0, sizeof(params));
1788         memset(&ret_params, 0, sizeof(ret_params));
1789
1790         /* Let the XDP queue share the queue-zone with one of the regular txq.
1791          * We don't really care about its coalescing.
1792          */
1793         if (txq->is_xdp)
1794                 params.queue_id = QEDE_TXQ_XDP_TO_IDX(edev, txq);
1795         else
1796                 params.queue_id = txq->index;
1797
1798         params.p_sb = fp->sb_info;
1799         params.sb_idx = sb_idx;
1800
1801         rc = edev->ops->q_tx_start(edev->cdev, rss_id, &params, phys_table,
1802                                    page_cnt, &ret_params);
1803         if (rc) {
1804                 DP_ERR(edev, "Start TXQ #%d failed %d\n", txq->index, rc);
1805                 return rc;
1806         }
1807
1808         txq->doorbell_addr = ret_params.p_doorbell;
1809         txq->handle = ret_params.p_handle;
1810
1811         /* Determine the FW consumer address associated */
1812         txq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[sb_idx];
1813
1814         /* Prepare the doorbell parameters */
1815         SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_DEST, DB_DEST_XCM);
1816         SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD, DB_AGG_CMD_SET);
1817         SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_VAL_SEL,
1818                   DQ_XCM_ETH_TX_BD_PROD_CMD);
1819         txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD;
1820
1821         return rc;
1822 }
1823
1824 static int qede_start_queues(struct qede_dev *edev, bool clear_stats)
1825 {
1826         int vlan_removal_en = 1;
1827         struct qed_dev *cdev = edev->cdev;
1828         struct qed_dev_info *qed_info = &edev->dev_info.common;
1829         struct qed_update_vport_params *vport_update_params;
1830         struct qed_queue_start_common_params q_params;
1831         struct qed_start_vport_params start = {0};
1832         int rc, i;
1833
1834         if (!edev->num_queues) {
1835                 DP_ERR(edev,
1836                        "Cannot update V-VPORT as active as there are no Rx queues\n");
1837                 return -EINVAL;
1838         }
1839
1840         vport_update_params = vzalloc(sizeof(*vport_update_params));
1841         if (!vport_update_params)
1842                 return -ENOMEM;
1843
1844         start.handle_ptp_pkts = !!(edev->ptp);
1845         start.gro_enable = !edev->gro_disable;
1846         start.mtu = edev->ndev->mtu;
1847         start.vport_id = 0;
1848         start.drop_ttl0 = true;
1849         start.remove_inner_vlan = vlan_removal_en;
1850         start.clear_stats = clear_stats;
1851
1852         rc = edev->ops->vport_start(cdev, &start);
1853
1854         if (rc) {
1855                 DP_ERR(edev, "Start V-PORT failed %d\n", rc);
1856                 goto out;
1857         }
1858
1859         DP_VERBOSE(edev, NETIF_MSG_IFUP,
1860                    "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
1861                    start.vport_id, edev->ndev->mtu + 0xe, vlan_removal_en);
1862
1863         for_each_queue(i) {
1864                 struct qede_fastpath *fp = &edev->fp_array[i];
1865                 dma_addr_t p_phys_table;
1866                 u32 page_cnt;
1867
1868                 if (fp->type & QEDE_FASTPATH_RX) {
1869                         struct qed_rxq_start_ret_params ret_params;
1870                         struct qede_rx_queue *rxq = fp->rxq;
1871                         __le16 *val;
1872
1873                         memset(&ret_params, 0, sizeof(ret_params));
1874                         memset(&q_params, 0, sizeof(q_params));
1875                         q_params.queue_id = rxq->rxq_id;
1876                         q_params.vport_id = 0;
1877                         q_params.p_sb = fp->sb_info;
1878                         q_params.sb_idx = RX_PI;
1879
1880                         p_phys_table =
1881                             qed_chain_get_pbl_phys(&rxq->rx_comp_ring);
1882                         page_cnt = qed_chain_get_page_cnt(&rxq->rx_comp_ring);
1883
1884                         rc = edev->ops->q_rx_start(cdev, i, &q_params,
1885                                                    rxq->rx_buf_size,
1886                                                    rxq->rx_bd_ring.p_phys_addr,
1887                                                    p_phys_table,
1888                                                    page_cnt, &ret_params);
1889                         if (rc) {
1890                                 DP_ERR(edev, "Start RXQ #%d failed %d\n", i,
1891                                        rc);
1892                                 goto out;
1893                         }
1894
1895                         /* Use the return parameters */
1896                         rxq->hw_rxq_prod_addr = ret_params.p_prod;
1897                         rxq->handle = ret_params.p_handle;
1898
1899                         val = &fp->sb_info->sb_virt->pi_array[RX_PI];
1900                         rxq->hw_cons_ptr = val;
1901
1902                         qede_update_rx_prod(edev, rxq);
1903                 }
1904
1905                 if (fp->type & QEDE_FASTPATH_XDP) {
1906                         rc = qede_start_txq(edev, fp, fp->xdp_tx, i, XDP_PI);
1907                         if (rc)
1908                                 goto out;
1909
1910                         fp->rxq->xdp_prog = bpf_prog_add(edev->xdp_prog, 1);
1911                         if (IS_ERR(fp->rxq->xdp_prog)) {
1912                                 rc = PTR_ERR(fp->rxq->xdp_prog);
1913                                 fp->rxq->xdp_prog = NULL;
1914                                 goto out;
1915                         }
1916                 }
1917
1918                 if (fp->type & QEDE_FASTPATH_TX) {
1919                         rc = qede_start_txq(edev, fp, fp->txq, i, TX_PI(0));
1920                         if (rc)
1921                                 goto out;
1922                 }
1923         }
1924
1925         /* Prepare and send the vport enable */
1926         vport_update_params->vport_id = start.vport_id;
1927         vport_update_params->update_vport_active_flg = 1;
1928         vport_update_params->vport_active_flg = 1;
1929
1930         if ((qed_info->mf_mode == QED_MF_NPAR || pci_num_vf(edev->pdev)) &&
1931             qed_info->tx_switching) {
1932                 vport_update_params->update_tx_switching_flg = 1;
1933                 vport_update_params->tx_switching_flg = 1;
1934         }
1935
1936         qede_fill_rss_params(edev, &vport_update_params->rss_params,
1937                              &vport_update_params->update_rss_flg);
1938
1939         rc = edev->ops->vport_update(cdev, vport_update_params);
1940         if (rc)
1941                 DP_ERR(edev, "Update V-PORT failed %d\n", rc);
1942
1943 out:
1944         vfree(vport_update_params);
1945         return rc;
1946 }
1947
1948 enum qede_unload_mode {
1949         QEDE_UNLOAD_NORMAL,
1950 };
1951
1952 static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode,
1953                         bool is_locked)
1954 {
1955         struct qed_link_params link_params;
1956         int rc;
1957
1958         DP_INFO(edev, "Starting qede unload\n");
1959
1960         if (!is_locked)
1961                 __qede_lock(edev);
1962
1963         edev->state = QEDE_STATE_CLOSED;
1964
1965         qede_rdma_dev_event_close(edev);
1966
1967         /* Close OS Tx */
1968         netif_tx_disable(edev->ndev);
1969         netif_carrier_off(edev->ndev);
1970
1971         /* Reset the link */
1972         memset(&link_params, 0, sizeof(link_params));
1973         link_params.link_up = false;
1974         edev->ops->common->set_link(edev->cdev, &link_params);
1975         rc = qede_stop_queues(edev);
1976         if (rc) {
1977                 qede_sync_free_irqs(edev);
1978                 goto out;
1979         }
1980
1981         DP_INFO(edev, "Stopped Queues\n");
1982
1983         qede_vlan_mark_nonconfigured(edev);
1984         edev->ops->fastpath_stop(edev->cdev);
1985
1986         if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
1987                 qede_poll_for_freeing_arfs_filters(edev);
1988                 qede_free_arfs(edev);
1989         }
1990
1991         /* Release the interrupts */
1992         qede_sync_free_irqs(edev);
1993         edev->ops->common->set_fp_int(edev->cdev, 0);
1994
1995         qede_napi_disable_remove(edev);
1996
1997         qede_free_mem_load(edev);
1998         qede_free_fp_array(edev);
1999
2000 out:
2001         if (!is_locked)
2002                 __qede_unlock(edev);
2003         DP_INFO(edev, "Ending qede unload\n");
2004 }
2005
2006 enum qede_load_mode {
2007         QEDE_LOAD_NORMAL,
2008         QEDE_LOAD_RELOAD,
2009 };
2010
2011 static int qede_load(struct qede_dev *edev, enum qede_load_mode mode,
2012                      bool is_locked)
2013 {
2014         struct qed_link_params link_params;
2015         int rc;
2016
2017         DP_INFO(edev, "Starting qede load\n");
2018
2019         if (!is_locked)
2020                 __qede_lock(edev);
2021
2022         rc = qede_set_num_queues(edev);
2023         if (rc)
2024                 goto out;
2025
2026         rc = qede_alloc_fp_array(edev);
2027         if (rc)
2028                 goto out;
2029
2030         qede_init_fp(edev);
2031
2032         rc = qede_alloc_mem_load(edev);
2033         if (rc)
2034                 goto err1;
2035         DP_INFO(edev, "Allocated %d Rx, %d Tx queues\n",
2036                 QEDE_RSS_COUNT(edev), QEDE_TSS_COUNT(edev));
2037
2038         rc = qede_set_real_num_queues(edev);
2039         if (rc)
2040                 goto err2;
2041
2042         if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
2043                 rc = qede_alloc_arfs(edev);
2044                 if (rc)
2045                         DP_NOTICE(edev, "aRFS memory allocation failed\n");
2046         }
2047
2048         qede_napi_add_enable(edev);
2049         DP_INFO(edev, "Napi added and enabled\n");
2050
2051         rc = qede_setup_irqs(edev);
2052         if (rc)
2053                 goto err3;
2054         DP_INFO(edev, "Setup IRQs succeeded\n");
2055
2056         rc = qede_start_queues(edev, mode != QEDE_LOAD_RELOAD);
2057         if (rc)
2058                 goto err4;
2059         DP_INFO(edev, "Start VPORT, RXQ and TXQ succeeded\n");
2060
2061         /* Program un-configured VLANs */
2062         qede_configure_vlan_filters(edev);
2063
2064         /* Ask for link-up using current configuration */
2065         memset(&link_params, 0, sizeof(link_params));
2066         link_params.link_up = true;
2067         edev->ops->common->set_link(edev->cdev, &link_params);
2068
2069         edev->state = QEDE_STATE_OPEN;
2070
2071         DP_INFO(edev, "Ending successfully qede load\n");
2072
2073         goto out;
2074 err4:
2075         qede_sync_free_irqs(edev);
2076         memset(&edev->int_info.msix_cnt, 0, sizeof(struct qed_int_info));
2077 err3:
2078         qede_napi_disable_remove(edev);
2079 err2:
2080         qede_free_mem_load(edev);
2081 err1:
2082         edev->ops->common->set_fp_int(edev->cdev, 0);
2083         qede_free_fp_array(edev);
2084         edev->num_queues = 0;
2085         edev->fp_num_tx = 0;
2086         edev->fp_num_rx = 0;
2087 out:
2088         if (!is_locked)
2089                 __qede_unlock(edev);
2090
2091         return rc;
2092 }
2093
2094 /* 'func' should be able to run between unload and reload assuming interface
2095  * is actually running, or afterwards in case it's currently DOWN.
2096  */
2097 void qede_reload(struct qede_dev *edev,
2098                  struct qede_reload_args *args, bool is_locked)
2099 {
2100         if (!is_locked)
2101                 __qede_lock(edev);
2102
2103         /* Since qede_lock is held, internal state wouldn't change even
2104          * if netdev state would start transitioning. Check whether current
2105          * internal configuration indicates device is up, then reload.
2106          */
2107         if (edev->state == QEDE_STATE_OPEN) {
2108                 qede_unload(edev, QEDE_UNLOAD_NORMAL, true);
2109                 if (args)
2110                         args->func(edev, args);
2111                 qede_load(edev, QEDE_LOAD_RELOAD, true);
2112
2113                 /* Since no one is going to do it for us, re-configure */
2114                 qede_config_rx_mode(edev->ndev);
2115         } else if (args) {
2116                 args->func(edev, args);
2117         }
2118
2119         if (!is_locked)
2120                 __qede_unlock(edev);
2121 }
2122
2123 /* called with rtnl_lock */
2124 static int qede_open(struct net_device *ndev)
2125 {
2126         struct qede_dev *edev = netdev_priv(ndev);
2127         int rc;
2128
2129         netif_carrier_off(ndev);
2130
2131         edev->ops->common->set_power_state(edev->cdev, PCI_D0);
2132
2133         rc = qede_load(edev, QEDE_LOAD_NORMAL, false);
2134         if (rc)
2135                 return rc;
2136
2137         udp_tunnel_get_rx_info(ndev);
2138
2139         edev->ops->common->update_drv_state(edev->cdev, true);
2140
2141         return 0;
2142 }
2143
2144 static int qede_close(struct net_device *ndev)
2145 {
2146         struct qede_dev *edev = netdev_priv(ndev);
2147
2148         qede_unload(edev, QEDE_UNLOAD_NORMAL, false);
2149
2150         edev->ops->common->update_drv_state(edev->cdev, false);
2151
2152         return 0;
2153 }
2154
2155 static void qede_link_update(void *dev, struct qed_link_output *link)
2156 {
2157         struct qede_dev *edev = dev;
2158
2159         if (!netif_running(edev->ndev)) {
2160                 DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not running\n");
2161                 return;
2162         }
2163
2164         if (link->link_up) {
2165                 if (!netif_carrier_ok(edev->ndev)) {
2166                         DP_NOTICE(edev, "Link is up\n");
2167                         netif_tx_start_all_queues(edev->ndev);
2168                         netif_carrier_on(edev->ndev);
2169                         qede_rdma_dev_event_open(edev);
2170                 }
2171         } else {
2172                 if (netif_carrier_ok(edev->ndev)) {
2173                         DP_NOTICE(edev, "Link is down\n");
2174                         netif_tx_disable(edev->ndev);
2175                         netif_carrier_off(edev->ndev);
2176                         qede_rdma_dev_event_close(edev);
2177                 }
2178         }
2179 }