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