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 #ifdef CONFIG_RFS_ACCEL
 877         pf_params.eth_pf_params.num_arfs_filters = QEDE_RFS_MAX_FLTR;
 878 #endif
 879         qed_ops->common->update_pf_params(cdev, &pf_params);
 880 }
 881
 882 #define QEDE_FW_VER_STR_SIZE    80
 883
 884 static void qede_log_probe(struct qede_dev *edev)
 885 {
 886         struct qed_dev_info *p_dev_info = &edev->dev_info.common;
 887         u8 buf[QEDE_FW_VER_STR_SIZE];
 888         size_t left_size;
 889
 890         snprintf(buf, QEDE_FW_VER_STR_SIZE,
 891                  "Storm FW %d.%d.%d.%d, Management FW %d.%d.%d.%d",
 892                  p_dev_info->fw_major, p_dev_info->fw_minor, p_dev_info->fw_rev,
 893                  p_dev_info->fw_eng,
 894                  (p_dev_info->mfw_rev & QED_MFW_VERSION_3_MASK) >>
 895                  QED_MFW_VERSION_3_OFFSET,
 896                  (p_dev_info->mfw_rev & QED_MFW_VERSION_2_MASK) >>
 897                  QED_MFW_VERSION_2_OFFSET,
 898                  (p_dev_info->mfw_rev & QED_MFW_VERSION_1_MASK) >>
 899                  QED_MFW_VERSION_1_OFFSET,
 900                  (p_dev_info->mfw_rev & QED_MFW_VERSION_0_MASK) >>
 901                  QED_MFW_VERSION_0_OFFSET);
 902
 903         left_size = QEDE_FW_VER_STR_SIZE - strlen(buf);
 904         if (p_dev_info->mbi_version && left_size)
 905                 snprintf(buf + strlen(buf), left_size,
 906                          " [MBI %d.%d.%d]",
 907                          (p_dev_info->mbi_version & QED_MBI_VERSION_2_MASK) >>
 908                          QED_MBI_VERSION_2_OFFSET,
 909                          (p_dev_info->mbi_version & QED_MBI_VERSION_1_MASK) >>
 910                          QED_MBI_VERSION_1_OFFSET,
 911                          (p_dev_info->mbi_version & QED_MBI_VERSION_0_MASK) >>
 912                          QED_MBI_VERSION_0_OFFSET);
 913
 914         pr_info("qede %02x:%02x.%02x: %s [%s]\n", edev->pdev->bus->number,
 915                 PCI_SLOT(edev->pdev->devfn), PCI_FUNC(edev->pdev->devfn),
 916                 buf, edev->ndev->name);
 917 }
 918
 919 enum qede_probe_mode {
 920         QEDE_PROBE_NORMAL,
 921 };
 922
 923 static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
 924                         bool is_vf, enum qede_probe_mode mode)
 925 {
 926         struct qed_probe_params probe_params;
 927         struct qed_slowpath_params sp_params;
 928         struct qed_dev_eth_info dev_info;
 929         struct qede_dev *edev;
 930         struct qed_dev *cdev;
 931         int rc;
 932
 933         if (unlikely(dp_level & QED_LEVEL_INFO))
 934                 pr_notice("Starting qede probe\n");
 935
 936         memset(&probe_params, 0, sizeof(probe_params));
 937         probe_params.protocol = QED_PROTOCOL_ETH;
 938         probe_params.dp_module = dp_module;
 939         probe_params.dp_level = dp_level;
 940         probe_params.is_vf = is_vf;
 941         cdev = qed_ops->common->probe(pdev, &probe_params);
 942         if (!cdev) {
 943                 rc = -ENODEV;
 944                 goto err0;
 945         }
 946
 947         qede_update_pf_params(cdev);
 948
 949         /* Start the Slowpath-process */
 950         memset(&sp_params, 0, sizeof(sp_params));
 951         sp_params.int_mode = QED_INT_MODE_MSIX;
 952         sp_params.drv_major = QEDE_MAJOR_VERSION;
 953         sp_params.drv_minor = QEDE_MINOR_VERSION;
 954         sp_params.drv_rev = QEDE_REVISION_VERSION;
 955         sp_params.drv_eng = QEDE_ENGINEERING_VERSION;
 956         strlcpy(sp_params.name, "qede LAN", QED_DRV_VER_STR_SIZE);
 957         rc = qed_ops->common->slowpath_start(cdev, &sp_params);
 958         if (rc) {
 959                 pr_notice("Cannot start slowpath\n");
 960                 goto err1;
 961         }
 962
 963         /* Learn information crucial for qede to progress */
 964         rc = qed_ops->fill_dev_info(cdev, &dev_info);
 965         if (rc)
 966                 goto err2;
 967
 968         edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module,
 969                                    dp_level);
 970         if (!edev) {
 971                 rc = -ENOMEM;
 972                 goto err2;
 973         }
 974
 975         if (is_vf)
 976                 edev->flags |= QEDE_FLAG_IS_VF;
 977
 978         qede_init_ndev(edev);
 979
 980         rc = qede_rdma_dev_add(edev);
 981         if (rc)
 982                 goto err3;
 983
 984         /* Prepare the lock prior to the registeration of the netdev,
 985          * as once it's registered we might reach flows requiring it
 986          * [it's even possible to reach a flow needing it directly
 987          * from there, although it's unlikely].
 988          */
 989         INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task);
 990         mutex_init(&edev->qede_lock);
 991         rc = register_netdev(edev->ndev);
 992         if (rc) {
 993                 DP_NOTICE(edev, "Cannot register net-device\n");
 994                 goto err4;
 995         }
 996
 997         edev->ops->common->set_name(cdev, edev->ndev->name);
 998
 999         /* PTP not supported on VFs */
1000         if (!is_vf)
1001                 qede_ptp_enable(edev, true);
1002
1003         edev->ops->register_ops(cdev, &qede_ll_ops, edev);
1004
1005 #ifdef CONFIG_DCB
1006         if (!IS_VF(edev))
1007                 qede_set_dcbnl_ops(edev->ndev);
1008 #endif
1009
1010         edev->rx_copybreak = QEDE_RX_HDR_SIZE;
1011
1012         qede_log_probe(edev);
1013         return 0;
1014
1015 err4:
1016         qede_rdma_dev_remove(edev);
1017 err3:
1018         free_netdev(edev->ndev);
1019 err2:
1020         qed_ops->common->slowpath_stop(cdev);
1021 err1:
1022         qed_ops->common->remove(cdev);
1023 err0:
1024         return rc;
1025 }
1026
1027 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1028 {
1029         bool is_vf = false;
1030         u32 dp_module = 0;
1031         u8 dp_level = 0;
1032
1033         switch ((enum qede_pci_private)id->driver_data) {
1034         case QEDE_PRIVATE_VF:
1035                 if (debug & QED_LOG_VERBOSE_MASK)
1036                         dev_err(&pdev->dev, "Probing a VF\n");
1037                 is_vf = true;
1038                 break;
1039         default:
1040                 if (debug & QED_LOG_VERBOSE_MASK)
1041                         dev_err(&pdev->dev, "Probing a PF\n");
1042         }
1043
1044         qede_config_debug(debug, &dp_module, &dp_level);
1045
1046         return __qede_probe(pdev, dp_module, dp_level, is_vf,
1047                             QEDE_PROBE_NORMAL);
1048 }
1049
1050 enum qede_remove_mode {
1051         QEDE_REMOVE_NORMAL,
1052 };
1053
1054 static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode)
1055 {
1056         struct net_device *ndev = pci_get_drvdata(pdev);
1057         struct qede_dev *edev = netdev_priv(ndev);
1058         struct qed_dev *cdev = edev->cdev;
1059
1060         DP_INFO(edev, "Starting qede_remove\n");
1061
1062         unregister_netdev(ndev);
1063         cancel_delayed_work_sync(&edev->sp_task);
1064
1065         qede_ptp_disable(edev);
1066
1067         qede_rdma_dev_remove(edev);
1068
1069         edev->ops->common->set_power_state(cdev, PCI_D0);
1070
1071         pci_set_drvdata(pdev, NULL);
1072
1073         /* Release edev's reference to XDP's bpf if such exist */
1074         if (edev->xdp_prog)
1075                 bpf_prog_put(edev->xdp_prog);
1076
1077         /* Use global ops since we've freed edev */
1078         qed_ops->common->slowpath_stop(cdev);
1079         if (system_state == SYSTEM_POWER_OFF)
1080                 return;
1081         qed_ops->common->remove(cdev);
1082
1083         /* Since this can happen out-of-sync with other flows,
1084          * don't release the netdevice until after slowpath stop
1085          * has been called to guarantee various other contexts
1086          * [e.g., QED register callbacks] won't break anything when
1087          * accessing the netdevice.
1088          */
1089          free_netdev(ndev);
1090
1091         dev_info(&pdev->dev, "Ending qede_remove successfully\n");
1092 }
1093
1094 static void qede_remove(struct pci_dev *pdev)
1095 {
1096         __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1097 }
1098
1099 static void qede_shutdown(struct pci_dev *pdev)
1100 {
1101         __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1102 }
1103
1104 /* -------------------------------------------------------------------------
1105  * START OF LOAD / UNLOAD
1106  * -------------------------------------------------------------------------
1107  */
1108
1109 static int qede_set_num_queues(struct qede_dev *edev)
1110 {
1111         int rc;
1112         u16 rss_num;
1113
1114         /* Setup queues according to possible resources*/
1115         if (edev->req_queues)
1116                 rss_num = edev->req_queues;
1117         else
1118                 rss_num = netif_get_num_default_rss_queues() *
1119                           edev->dev_info.common.num_hwfns;
1120
1121         rss_num = min_t(u16, QEDE_MAX_RSS_CNT(edev), rss_num);
1122
1123         rc = edev->ops->common->set_fp_int(edev->cdev, rss_num);
1124         if (rc > 0) {
1125                 /* Managed to request interrupts for our queues */
1126                 edev->num_queues = rc;
1127                 DP_INFO(edev, "Managed %d [of %d] RSS queues\n",
1128                         QEDE_QUEUE_CNT(edev), rss_num);
1129                 rc = 0;
1130         }
1131
1132         edev->fp_num_tx = edev->req_num_tx;
1133         edev->fp_num_rx = edev->req_num_rx;
1134
1135         return rc;
1136 }
1137
1138 static void qede_free_mem_sb(struct qede_dev *edev, struct qed_sb_info *sb_info,
1139                              u16 sb_id)
1140 {
1141         if (sb_info->sb_virt) {
1142                 edev->ops->common->sb_release(edev->cdev, sb_info, sb_id);
1143                 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_info->sb_virt),
1144                                   (void *)sb_info->sb_virt, sb_info->sb_phys);
1145                 memset(sb_info, 0, sizeof(*sb_info));
1146         }
1147 }
1148
1149 /* This function allocates fast-path status block memory */
1150 static int qede_alloc_mem_sb(struct qede_dev *edev,
1151                              struct qed_sb_info *sb_info, u16 sb_id)
1152 {
1153         struct status_block *sb_virt;
1154         dma_addr_t sb_phys;
1155         int rc;
1156
1157         sb_virt = dma_alloc_coherent(&edev->pdev->dev,
1158                                      sizeof(*sb_virt), &sb_phys, GFP_KERNEL);
1159         if (!sb_virt) {
1160                 DP_ERR(edev, "Status block allocation failed\n");
1161                 return -ENOMEM;
1162         }
1163
1164         rc = edev->ops->common->sb_init(edev->cdev, sb_info,
1165                                         sb_virt, sb_phys, sb_id,
1166                                         QED_SB_TYPE_L2_QUEUE);
1167         if (rc) {
1168                 DP_ERR(edev, "Status block initialization failed\n");
1169                 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_virt),
1170                                   sb_virt, sb_phys);
1171                 return rc;
1172         }
1173
1174         return 0;
1175 }
1176
1177 static void qede_free_rx_buffers(struct qede_dev *edev,
1178                                  struct qede_rx_queue *rxq)
1179 {
1180         u16 i;
1181
1182         for (i = rxq->sw_rx_cons; i != rxq->sw_rx_prod; i++) {
1183                 struct sw_rx_data *rx_buf;
1184                 struct page *data;
1185
1186                 rx_buf = &rxq->sw_rx_ring[i & NUM_RX_BDS_MAX];
1187                 data = rx_buf->data;
1188
1189                 dma_unmap_page(&edev->pdev->dev,
1190                                rx_buf->mapping, PAGE_SIZE, rxq->data_direction);
1191
1192                 rx_buf->data = NULL;
1193                 __free_page(data);
1194         }
1195 }
1196
1197 static void qede_free_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1198 {
1199         int i;
1200
1201         if (edev->gro_disable)
1202                 return;
1203
1204         for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1205                 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1206                 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1207
1208                 if (replace_buf->data) {
1209                         dma_unmap_page(&edev->pdev->dev,
1210                                        replace_buf->mapping,
1211                                        PAGE_SIZE, DMA_FROM_DEVICE);
1212                         __free_page(replace_buf->data);
1213                 }
1214         }
1215 }
1216
1217 static void qede_free_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1218 {
1219         qede_free_sge_mem(edev, rxq);
1220
1221         /* Free rx buffers */
1222         qede_free_rx_buffers(edev, rxq);
1223
1224         /* Free the parallel SW ring */
1225         kfree(rxq->sw_rx_ring);
1226
1227         /* Free the real RQ ring used by FW */
1228         edev->ops->common->chain_free(edev->cdev, &rxq->rx_bd_ring);
1229         edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring);
1230 }
1231
1232 static int qede_alloc_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1233 {
1234         dma_addr_t mapping;
1235         int i;
1236
1237         /* Don't perform FW aggregations in case of XDP */
1238         if (edev->xdp_prog)
1239                 edev->gro_disable = 1;
1240
1241         if (edev->gro_disable)
1242                 return 0;
1243
1244         if (edev->ndev->mtu > PAGE_SIZE) {
1245                 edev->gro_disable = 1;
1246                 return 0;
1247         }
1248
1249         for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1250                 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1251                 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1252
1253                 replace_buf->data = alloc_pages(GFP_ATOMIC, 0);
1254                 if (unlikely(!replace_buf->data)) {
1255                         DP_NOTICE(edev,
1256                                   "Failed to allocate TPA skb pool [replacement buffer]\n");
1257                         goto err;
1258                 }
1259
1260                 mapping = dma_map_page(&edev->pdev->dev, replace_buf->data, 0,
1261                                        PAGE_SIZE, DMA_FROM_DEVICE);
1262                 if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) {
1263                         DP_NOTICE(edev,
1264                                   "Failed to map TPA replacement buffer\n");
1265                         goto err;
1266                 }
1267
1268                 replace_buf->mapping = mapping;
1269                 tpa_info->buffer.page_offset = 0;
1270                 tpa_info->buffer_mapping = mapping;
1271                 tpa_info->state = QEDE_AGG_STATE_NONE;
1272         }
1273
1274         return 0;
1275 err:
1276         qede_free_sge_mem(edev, rxq);
1277         edev->gro_disable = 1;
1278         return -ENOMEM;
1279 }
1280
1281 /* This function allocates all memory needed per Rx queue */
1282 static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1283 {
1284         int i, rc, size;
1285
1286         rxq->num_rx_buffers = edev->q_num_rx_buffers;
1287
1288         rxq->rx_buf_size = NET_IP_ALIGN + ETH_OVERHEAD + edev->ndev->mtu;
1289         rxq->rx_headroom = edev->xdp_prog ? XDP_PACKET_HEADROOM : 0;
1290
1291         /* Make sure that the headroom and  payload fit in a single page */
1292         if (rxq->rx_buf_size + rxq->rx_headroom > PAGE_SIZE)
1293                 rxq->rx_buf_size = PAGE_SIZE - rxq->rx_headroom;
1294
1295         /* Segment size to spilt a page in multiple equal parts,
1296          * unless XDP is used in which case we'd use the entire page.
1297          */
1298         if (!edev->xdp_prog)
1299                 rxq->rx_buf_seg_size = roundup_pow_of_two(rxq->rx_buf_size);
1300         else
1301                 rxq->rx_buf_seg_size = PAGE_SIZE;
1302
1303         /* Allocate the parallel driver ring for Rx buffers */
1304         size = sizeof(*rxq->sw_rx_ring) * RX_RING_SIZE;
1305         rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL);
1306         if (!rxq->sw_rx_ring) {
1307                 DP_ERR(edev, "Rx buffers ring allocation failed\n");
1308                 rc = -ENOMEM;
1309                 goto err;
1310         }
1311
1312         /* Allocate FW Rx ring  */
1313         rc = edev->ops->common->chain_alloc(edev->cdev,
1314                                             QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1315                                             QED_CHAIN_MODE_NEXT_PTR,
1316                                             QED_CHAIN_CNT_TYPE_U16,
1317                                             RX_RING_SIZE,
1318                                             sizeof(struct eth_rx_bd),
1319                                             &rxq->rx_bd_ring, NULL);
1320         if (rc)
1321                 goto err;
1322
1323         /* Allocate FW completion ring */
1324         rc = edev->ops->common->chain_alloc(edev->cdev,
1325                                             QED_CHAIN_USE_TO_CONSUME,
1326                                             QED_CHAIN_MODE_PBL,
1327                                             QED_CHAIN_CNT_TYPE_U16,
1328                                             RX_RING_SIZE,
1329                                             sizeof(union eth_rx_cqe),
1330                                             &rxq->rx_comp_ring, NULL);
1331         if (rc)
1332                 goto err;
1333
1334         /* Allocate buffers for the Rx ring */
1335         rxq->filled_buffers = 0;
1336         for (i = 0; i < rxq->num_rx_buffers; i++) {
1337                 rc = qede_alloc_rx_buffer(rxq, false);
1338                 if (rc) {
1339                         DP_ERR(edev,
1340                                "Rx buffers allocation failed at index %d\n", i);
1341                         goto err;
1342                 }
1343         }
1344
1345         rc = qede_alloc_sge_mem(edev, rxq);
1346 err:
1347         return rc;
1348 }
1349
1350 static void qede_free_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1351 {
1352         /* Free the parallel SW ring */
1353         if (txq->is_xdp)
1354                 kfree(txq->sw_tx_ring.xdp);
1355         else
1356                 kfree(txq->sw_tx_ring.skbs);
1357
1358         /* Free the real RQ ring used by FW */
1359         edev->ops->common->chain_free(edev->cdev, &txq->tx_pbl);
1360 }
1361
1362 /* This function allocates all memory needed per Tx queue */
1363 static int qede_alloc_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1364 {
1365         union eth_tx_bd_types *p_virt;
1366         int size, rc;
1367
1368         txq->num_tx_buffers = edev->q_num_tx_buffers;
1369
1370         /* Allocate the parallel driver ring for Tx buffers */
1371         if (txq->is_xdp) {
1372                 size = sizeof(*txq->sw_tx_ring.xdp) * txq->num_tx_buffers;
1373                 txq->sw_tx_ring.xdp = kzalloc(size, GFP_KERNEL);
1374                 if (!txq->sw_tx_ring.xdp)
1375                         goto err;
1376         } else {
1377                 size = sizeof(*txq->sw_tx_ring.skbs) * txq->num_tx_buffers;
1378                 txq->sw_tx_ring.skbs = kzalloc(size, GFP_KERNEL);
1379                 if (!txq->sw_tx_ring.skbs)
1380                         goto err;
1381         }
1382
1383         rc = edev->ops->common->chain_alloc(edev->cdev,
1384                                             QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1385                                             QED_CHAIN_MODE_PBL,
1386                                             QED_CHAIN_CNT_TYPE_U16,
1387                                             txq->num_tx_buffers,
1388                                             sizeof(*p_virt),
1389                                             &txq->tx_pbl, NULL);
1390         if (rc)
1391                 goto err;
1392
1393         return 0;
1394
1395 err:
1396         qede_free_mem_txq(edev, txq);
1397         return -ENOMEM;
1398 }
1399
1400 /* This function frees all memory of a single fp */
1401 static void qede_free_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1402 {
1403         qede_free_mem_sb(edev, fp->sb_info, fp->id);
1404
1405         if (fp->type & QEDE_FASTPATH_RX)
1406                 qede_free_mem_rxq(edev, fp->rxq);
1407
1408         if (fp->type & QEDE_FASTPATH_XDP)
1409                 qede_free_mem_txq(edev, fp->xdp_tx);
1410
1411         if (fp->type & QEDE_FASTPATH_TX)
1412                 qede_free_mem_txq(edev, fp->txq);
1413 }
1414
1415 /* This function allocates all memory needed for a single fp (i.e. an entity
1416  * which contains status block, one rx queue and/or multiple per-TC tx queues.
1417  */
1418 static int qede_alloc_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1419 {
1420         int rc = 0;
1421
1422         rc = qede_alloc_mem_sb(edev, fp->sb_info, fp->id);
1423         if (rc)
1424                 goto out;
1425
1426         if (fp->type & QEDE_FASTPATH_RX) {
1427                 rc = qede_alloc_mem_rxq(edev, fp->rxq);
1428                 if (rc)
1429                         goto out;
1430         }
1431
1432         if (fp->type & QEDE_FASTPATH_XDP) {
1433                 rc = qede_alloc_mem_txq(edev, fp->xdp_tx);
1434                 if (rc)
1435                         goto out;
1436         }
1437
1438         if (fp->type & QEDE_FASTPATH_TX) {
1439                 rc = qede_alloc_mem_txq(edev, fp->txq);
1440                 if (rc)
1441                         goto out;
1442         }
1443
1444 out:
1445         return rc;
1446 }
1447
1448 static void qede_free_mem_load(struct qede_dev *edev)
1449 {
1450         int i;
1451
1452         for_each_queue(i) {
1453                 struct qede_fastpath *fp = &edev->fp_array[i];
1454
1455                 qede_free_mem_fp(edev, fp);
1456         }
1457 }
1458
1459 /* This function allocates all qede memory at NIC load. */
1460 static int qede_alloc_mem_load(struct qede_dev *edev)
1461 {
1462         int rc = 0, queue_id;
1463
1464         for (queue_id = 0; queue_id < QEDE_QUEUE_CNT(edev); queue_id++) {
1465                 struct qede_fastpath *fp = &edev->fp_array[queue_id];
1466
1467                 rc = qede_alloc_mem_fp(edev, fp);
1468                 if (rc) {
1469                         DP_ERR(edev,
1470                                "Failed to allocate memory for fastpath - rss id = %d\n",
1471                                queue_id);
1472                         qede_free_mem_load(edev);
1473                         return rc;
1474                 }
1475         }
1476
1477         return 0;
1478 }
1479
1480 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
1481 static void qede_init_fp(struct qede_dev *edev)
1482 {
1483         int queue_id, rxq_index = 0, txq_index = 0;
1484         struct qede_fastpath *fp;
1485
1486         for_each_queue(queue_id) {
1487                 fp = &edev->fp_array[queue_id];
1488
1489                 fp->edev = edev;
1490                 fp->id = queue_id;
1491
1492                 if (fp->type & QEDE_FASTPATH_XDP) {
1493                         fp->xdp_tx->index = QEDE_TXQ_IDX_TO_XDP(edev,
1494                                                                 rxq_index);
1495                         fp->xdp_tx->is_xdp = 1;
1496                 }
1497
1498                 if (fp->type & QEDE_FASTPATH_RX) {
1499                         fp->rxq->rxq_id = rxq_index++;
1500
1501                         /* Determine how to map buffers for this queue */
1502                         if (fp->type & QEDE_FASTPATH_XDP)
1503                                 fp->rxq->data_direction = DMA_BIDIRECTIONAL;
1504                         else
1505                                 fp->rxq->data_direction = DMA_FROM_DEVICE;
1506                         fp->rxq->dev = &edev->pdev->dev;
1507                 }
1508
1509                 if (fp->type & QEDE_FASTPATH_TX) {
1510                         fp->txq->index = txq_index++;
1511                         if (edev->dev_info.is_legacy)
1512                                 fp->txq->is_legacy = 1;
1513                         fp->txq->dev = &edev->pdev->dev;
1514                 }
1515
1516                 snprintf(fp->name, sizeof(fp->name), "%s-fp-%d",
1517                          edev->ndev->name, queue_id);
1518         }
1519
1520         edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO);
1521 }
1522
1523 static int qede_set_real_num_queues(struct qede_dev *edev)
1524 {
1525         int rc = 0;
1526
1527         rc = netif_set_real_num_tx_queues(edev->ndev, QEDE_TSS_COUNT(edev));
1528         if (rc) {
1529                 DP_NOTICE(edev, "Failed to set real number of Tx queues\n");
1530                 return rc;
1531         }
1532
1533         rc = netif_set_real_num_rx_queues(edev->ndev, QEDE_RSS_COUNT(edev));
1534         if (rc) {
1535                 DP_NOTICE(edev, "Failed to set real number of Rx queues\n");
1536                 return rc;
1537         }
1538
1539         return 0;
1540 }
1541
1542 static void qede_napi_disable_remove(struct qede_dev *edev)
1543 {
1544         int i;
1545
1546         for_each_queue(i) {
1547                 napi_disable(&edev->fp_array[i].napi);
1548
1549                 netif_napi_del(&edev->fp_array[i].napi);
1550         }
1551 }
1552
1553 static void qede_napi_add_enable(struct qede_dev *edev)
1554 {
1555         int i;
1556
1557         /* Add NAPI objects */
1558         for_each_queue(i) {
1559                 netif_napi_add(edev->ndev, &edev->fp_array[i].napi,
1560                                qede_poll, NAPI_POLL_WEIGHT);
1561                 napi_enable(&edev->fp_array[i].napi);
1562         }
1563 }
1564
1565 static void qede_sync_free_irqs(struct qede_dev *edev)
1566 {
1567         int i;
1568
1569         for (i = 0; i < edev->int_info.used_cnt; i++) {
1570                 if (edev->int_info.msix_cnt) {
1571                         synchronize_irq(edev->int_info.msix[i].vector);
1572                         free_irq(edev->int_info.msix[i].vector,
1573                                  &edev->fp_array[i]);
1574                 } else {
1575                         edev->ops->common->simd_handler_clean(edev->cdev, i);
1576                 }
1577         }
1578
1579         edev->int_info.used_cnt = 0;
1580 }
1581
1582 static int qede_req_msix_irqs(struct qede_dev *edev)
1583 {
1584         int i, rc;
1585
1586         /* Sanitize number of interrupts == number of prepared RSS queues */
1587         if (QEDE_QUEUE_CNT(edev) > edev->int_info.msix_cnt) {
1588                 DP_ERR(edev,
1589                        "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
1590                        QEDE_QUEUE_CNT(edev), edev->int_info.msix_cnt);
1591                 return -EINVAL;
1592         }
1593
1594         for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) {
1595 #ifdef CONFIG_RFS_ACCEL
1596                 struct qede_fastpath *fp = &edev->fp_array[i];
1597
1598                 if (edev->ndev->rx_cpu_rmap && (fp->type & QEDE_FASTPATH_RX)) {
1599                         rc = irq_cpu_rmap_add(edev->ndev->rx_cpu_rmap,
1600                                               edev->int_info.msix[i].vector);
1601                         if (rc) {
1602                                 DP_ERR(edev, "Failed to add CPU rmap\n");
1603                                 qede_free_arfs(edev);
1604                         }
1605                 }
1606 #endif
1607                 rc = request_irq(edev->int_info.msix[i].vector,
1608                                  qede_msix_fp_int, 0, edev->fp_array[i].name,
1609                                  &edev->fp_array[i]);
1610                 if (rc) {
1611                         DP_ERR(edev, "Request fp %d irq failed\n", i);
1612                         qede_sync_free_irqs(edev);
1613                         return rc;
1614                 }
1615                 DP_VERBOSE(edev, NETIF_MSG_INTR,
1616                            "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
1617                            edev->fp_array[i].name, i,
1618                            &edev->fp_array[i]);
1619                 edev->int_info.used_cnt++;
1620         }
1621
1622         return 0;
1623 }
1624
1625 static void qede_simd_fp_handler(void *cookie)
1626 {
1627         struct qede_fastpath *fp = (struct qede_fastpath *)cookie;
1628
1629         napi_schedule_irqoff(&fp->napi);
1630 }
1631
1632 static int qede_setup_irqs(struct qede_dev *edev)
1633 {
1634         int i, rc = 0;
1635
1636         /* Learn Interrupt configuration */
1637         rc = edev->ops->common->get_fp_int(edev->cdev, &edev->int_info);
1638         if (rc)
1639                 return rc;
1640
1641         if (edev->int_info.msix_cnt) {
1642                 rc = qede_req_msix_irqs(edev);
1643                 if (rc)
1644                         return rc;
1645                 edev->ndev->irq = edev->int_info.msix[0].vector;
1646         } else {
1647                 const struct qed_common_ops *ops;
1648
1649                 /* qed should learn receive the RSS ids and callbacks */
1650                 ops = edev->ops->common;
1651                 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++)
1652                         ops->simd_handler_config(edev->cdev,
1653                                                  &edev->fp_array[i], i,
1654                                                  qede_simd_fp_handler);
1655                 edev->int_info.used_cnt = QEDE_QUEUE_CNT(edev);
1656         }
1657         return 0;
1658 }
1659
1660 static int qede_drain_txq(struct qede_dev *edev,
1661                           struct qede_tx_queue *txq, bool allow_drain)
1662 {
1663         int rc, cnt = 1000;
1664
1665         while (txq->sw_tx_cons != txq->sw_tx_prod) {
1666                 if (!cnt) {
1667                         if (allow_drain) {
1668                                 DP_NOTICE(edev,
1669                                           "Tx queue[%d] is stuck, requesting MCP to drain\n",
1670                                           txq->index);
1671                                 rc = edev->ops->common->drain(edev->cdev);
1672                                 if (rc)
1673                                         return rc;
1674                                 return qede_drain_txq(edev, txq, false);
1675                         }
1676                         DP_NOTICE(edev,
1677                                   "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
1678                                   txq->index, txq->sw_tx_prod,
1679                                   txq->sw_tx_cons);
1680                         return -ENODEV;
1681                 }
1682                 cnt--;
1683                 usleep_range(1000, 2000);
1684                 barrier();
1685         }
1686
1687         /* FW finished processing, wait for HW to transmit all tx packets */
1688         usleep_range(1000, 2000);
1689
1690         return 0;
1691 }
1692
1693 static int qede_stop_txq(struct qede_dev *edev,
1694                          struct qede_tx_queue *txq, int rss_id)
1695 {
1696         return edev->ops->q_tx_stop(edev->cdev, rss_id, txq->handle);
1697 }
1698
1699 static int qede_stop_queues(struct qede_dev *edev)
1700 {
1701         struct qed_update_vport_params *vport_update_params;
1702         struct qed_dev *cdev = edev->cdev;
1703         struct qede_fastpath *fp;
1704         int rc, i;
1705
1706         /* Disable the vport */
1707         vport_update_params = vzalloc(sizeof(*vport_update_params));
1708         if (!vport_update_params)
1709                 return -ENOMEM;
1710
1711         vport_update_params->vport_id = 0;
1712         vport_update_params->update_vport_active_flg = 1;
1713         vport_update_params->vport_active_flg = 0;
1714         vport_update_params->update_rss_flg = 0;
1715
1716         rc = edev->ops->vport_update(cdev, vport_update_params);
1717         vfree(vport_update_params);
1718
1719         if (rc) {
1720                 DP_ERR(edev, "Failed to update vport\n");
1721                 return rc;
1722         }
1723
1724         /* Flush Tx queues. If needed, request drain from MCP */
1725         for_each_queue(i) {
1726                 fp = &edev->fp_array[i];
1727
1728                 if (fp->type & QEDE_FASTPATH_TX) {
1729                         rc = qede_drain_txq(edev, fp->txq, true);
1730                         if (rc)
1731                                 return rc;
1732                 }
1733
1734                 if (fp->type & QEDE_FASTPATH_XDP) {
1735                         rc = qede_drain_txq(edev, fp->xdp_tx, true);
1736                         if (rc)
1737                                 return rc;
1738                 }
1739         }
1740
1741         /* Stop all Queues in reverse order */
1742         for (i = QEDE_QUEUE_CNT(edev) - 1; i >= 0; i--) {
1743                 fp = &edev->fp_array[i];
1744
1745                 /* Stop the Tx Queue(s) */
1746                 if (fp->type & QEDE_FASTPATH_TX) {
1747                         rc = qede_stop_txq(edev, fp->txq, i);
1748                         if (rc)
1749                                 return rc;
1750                 }
1751
1752                 /* Stop the Rx Queue */
1753                 if (fp->type & QEDE_FASTPATH_RX) {
1754                         rc = edev->ops->q_rx_stop(cdev, i, fp->rxq->handle);
1755                         if (rc) {
1756                                 DP_ERR(edev, "Failed to stop RXQ #%d\n", i);
1757                                 return rc;
1758                         }
1759                 }
1760
1761                 /* Stop the XDP forwarding queue */
1762                 if (fp->type & QEDE_FASTPATH_XDP) {
1763                         rc = qede_stop_txq(edev, fp->xdp_tx, i);
1764                         if (rc)
1765                                 return rc;
1766
1767                         bpf_prog_put(fp->rxq->xdp_prog);
1768                 }
1769         }
1770
1771         /* Stop the vport */
1772         rc = edev->ops->vport_stop(cdev, 0);
1773         if (rc)
1774                 DP_ERR(edev, "Failed to stop VPORT\n");
1775
1776         return rc;
1777 }
1778
1779 static int qede_start_txq(struct qede_dev *edev,
1780                           struct qede_fastpath *fp,
1781                           struct qede_tx_queue *txq, u8 rss_id, u16 sb_idx)
1782 {
1783         dma_addr_t phys_table = qed_chain_get_pbl_phys(&txq->tx_pbl);
1784         u32 page_cnt = qed_chain_get_page_cnt(&txq->tx_pbl);
1785         struct qed_queue_start_common_params params;
1786         struct qed_txq_start_ret_params ret_params;
1787         int rc;
1788
1789         memset(&params, 0, sizeof(params));
1790         memset(&ret_params, 0, sizeof(ret_params));
1791
1792         /* Let the XDP queue share the queue-zone with one of the regular txq.
1793          * We don't really care about its coalescing.
1794          */
1795         if (txq->is_xdp)
1796                 params.queue_id = QEDE_TXQ_XDP_TO_IDX(edev, txq);
1797         else
1798                 params.queue_id = txq->index;
1799
1800         params.p_sb = fp->sb_info;
1801         params.sb_idx = sb_idx;
1802
1803         rc = edev->ops->q_tx_start(edev->cdev, rss_id, &params, phys_table,
1804                                    page_cnt, &ret_params);
1805         if (rc) {
1806                 DP_ERR(edev, "Start TXQ #%d failed %d\n", txq->index, rc);
1807                 return rc;
1808         }
1809
1810         txq->doorbell_addr = ret_params.p_doorbell;
1811         txq->handle = ret_params.p_handle;
1812
1813         /* Determine the FW consumer address associated */
1814         txq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[sb_idx];
1815
1816         /* Prepare the doorbell parameters */
1817         SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_DEST, DB_DEST_XCM);
1818         SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD, DB_AGG_CMD_SET);
1819         SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_VAL_SEL,
1820                   DQ_XCM_ETH_TX_BD_PROD_CMD);
1821         txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD;
1822
1823         return rc;
1824 }
1825
1826 static int qede_start_queues(struct qede_dev *edev, bool clear_stats)
1827 {
1828         int vlan_removal_en = 1;
1829         struct qed_dev *cdev = edev->cdev;
1830         struct qed_dev_info *qed_info = &edev->dev_info.common;
1831         struct qed_update_vport_params *vport_update_params;
1832         struct qed_queue_start_common_params q_params;
1833         struct qed_start_vport_params start = {0};
1834         int rc, i;
1835
1836         if (!edev->num_queues) {
1837                 DP_ERR(edev,
1838                        "Cannot update V-VPORT as active as there are no Rx queues\n");
1839                 return -EINVAL;
1840         }
1841
1842         vport_update_params = vzalloc(sizeof(*vport_update_params));
1843         if (!vport_update_params)
1844                 return -ENOMEM;
1845
1846         start.handle_ptp_pkts = !!(edev->ptp);
1847         start.gro_enable = !edev->gro_disable;
1848         start.mtu = edev->ndev->mtu;
1849         start.vport_id = 0;
1850         start.drop_ttl0 = true;
1851         start.remove_inner_vlan = vlan_removal_en;
1852         start.clear_stats = clear_stats;
1853
1854         rc = edev->ops->vport_start(cdev, &start);
1855
1856         if (rc) {
1857                 DP_ERR(edev, "Start V-PORT failed %d\n", rc);
1858                 goto out;
1859         }
1860
1861         DP_VERBOSE(edev, NETIF_MSG_IFUP,
1862                    "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
1863                    start.vport_id, edev->ndev->mtu + 0xe, vlan_removal_en);
1864
1865         for_each_queue(i) {
1866                 struct qede_fastpath *fp = &edev->fp_array[i];
1867                 dma_addr_t p_phys_table;
1868                 u32 page_cnt;
1869
1870                 if (fp->type & QEDE_FASTPATH_RX) {
1871                         struct qed_rxq_start_ret_params ret_params;
1872                         struct qede_rx_queue *rxq = fp->rxq;
1873                         __le16 *val;
1874
1875                         memset(&ret_params, 0, sizeof(ret_params));
1876                         memset(&q_params, 0, sizeof(q_params));
1877                         q_params.queue_id = rxq->rxq_id;
1878                         q_params.vport_id = 0;
1879                         q_params.p_sb = fp->sb_info;
1880                         q_params.sb_idx = RX_PI;
1881
1882                         p_phys_table =
1883                             qed_chain_get_pbl_phys(&rxq->rx_comp_ring);
1884                         page_cnt = qed_chain_get_page_cnt(&rxq->rx_comp_ring);
1885
1886                         rc = edev->ops->q_rx_start(cdev, i, &q_params,
1887                                                    rxq->rx_buf_size,
1888                                                    rxq->rx_bd_ring.p_phys_addr,
1889                                                    p_phys_table,
1890                                                    page_cnt, &ret_params);
1891                         if (rc) {
1892                                 DP_ERR(edev, "Start RXQ #%d failed %d\n", i,
1893                                        rc);
1894                                 goto out;
1895                         }
1896
1897                         /* Use the return parameters */
1898                         rxq->hw_rxq_prod_addr = ret_params.p_prod;
1899                         rxq->handle = ret_params.p_handle;
1900
1901                         val = &fp->sb_info->sb_virt->pi_array[RX_PI];
1902                         rxq->hw_cons_ptr = val;
1903
1904                         qede_update_rx_prod(edev, rxq);
1905                 }
1906
1907                 if (fp->type & QEDE_FASTPATH_XDP) {
1908                         rc = qede_start_txq(edev, fp, fp->xdp_tx, i, XDP_PI);
1909                         if (rc)
1910                                 goto out;
1911
1912                         fp->rxq->xdp_prog = bpf_prog_add(edev->xdp_prog, 1);
1913                         if (IS_ERR(fp->rxq->xdp_prog)) {
1914                                 rc = PTR_ERR(fp->rxq->xdp_prog);
1915                                 fp->rxq->xdp_prog = NULL;
1916                                 goto out;
1917                         }
1918                 }
1919
1920                 if (fp->type & QEDE_FASTPATH_TX) {
1921                         rc = qede_start_txq(edev, fp, fp->txq, i, TX_PI(0));
1922                         if (rc)
1923                                 goto out;
1924                 }
1925         }
1926
1927         /* Prepare and send the vport enable */
1928         vport_update_params->vport_id = start.vport_id;
1929         vport_update_params->update_vport_active_flg = 1;
1930         vport_update_params->vport_active_flg = 1;
1931
1932         if ((qed_info->mf_mode == QED_MF_NPAR || pci_num_vf(edev->pdev)) &&
1933             qed_info->tx_switching) {
1934                 vport_update_params->update_tx_switching_flg = 1;
1935                 vport_update_params->tx_switching_flg = 1;
1936         }
1937
1938         qede_fill_rss_params(edev, &vport_update_params->rss_params,
1939                              &vport_update_params->update_rss_flg);
1940
1941         rc = edev->ops->vport_update(cdev, vport_update_params);
1942         if (rc)
1943                 DP_ERR(edev, "Update V-PORT failed %d\n", rc);
1944
1945 out:
1946         vfree(vport_update_params);
1947         return rc;
1948 }
1949
1950 enum qede_unload_mode {
1951         QEDE_UNLOAD_NORMAL,
1952 };
1953
1954 static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode,
1955                         bool is_locked)
1956 {
1957         struct qed_link_params link_params;
1958         int rc;
1959
1960         DP_INFO(edev, "Starting qede unload\n");
1961
1962         if (!is_locked)
1963                 __qede_lock(edev);
1964
1965         edev->state = QEDE_STATE_CLOSED;
1966
1967         qede_rdma_dev_event_close(edev);
1968
1969         /* Close OS Tx */
1970         netif_tx_disable(edev->ndev);
1971         netif_carrier_off(edev->ndev);
1972
1973         /* Reset the link */
1974         memset(&link_params, 0, sizeof(link_params));
1975         link_params.link_up = false;
1976         edev->ops->common->set_link(edev->cdev, &link_params);
1977         rc = qede_stop_queues(edev);
1978         if (rc) {
1979                 qede_sync_free_irqs(edev);
1980                 goto out;
1981         }
1982
1983         DP_INFO(edev, "Stopped Queues\n");
1984
1985         qede_vlan_mark_nonconfigured(edev);
1986         edev->ops->fastpath_stop(edev->cdev);
1987 #ifdef CONFIG_RFS_ACCEL
1988         if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
1989                 qede_poll_for_freeing_arfs_filters(edev);
1990                 qede_free_arfs(edev);
1991         }
1992 #endif
1993         /* Release the interrupts */
1994         qede_sync_free_irqs(edev);
1995         edev->ops->common->set_fp_int(edev->cdev, 0);
1996
1997         qede_napi_disable_remove(edev);
1998
1999         qede_free_mem_load(edev);
2000         qede_free_fp_array(edev);
2001
2002 out:
2003         if (!is_locked)
2004                 __qede_unlock(edev);
2005         DP_INFO(edev, "Ending qede unload\n");
2006 }
2007
2008 enum qede_load_mode {
2009         QEDE_LOAD_NORMAL,
2010         QEDE_LOAD_RELOAD,
2011 };
2012
2013 static int qede_load(struct qede_dev *edev, enum qede_load_mode mode,
2014                      bool is_locked)
2015 {
2016         struct qed_link_params link_params;
2017         int rc;
2018
2019         DP_INFO(edev, "Starting qede load\n");
2020
2021         if (!is_locked)
2022                 __qede_lock(edev);
2023
2024         rc = qede_set_num_queues(edev);
2025         if (rc)
2026                 goto out;
2027
2028         rc = qede_alloc_fp_array(edev);
2029         if (rc)
2030                 goto out;
2031
2032         qede_init_fp(edev);
2033
2034         rc = qede_alloc_mem_load(edev);
2035         if (rc)
2036                 goto err1;
2037         DP_INFO(edev, "Allocated %d Rx, %d Tx queues\n",
2038                 QEDE_RSS_COUNT(edev), QEDE_TSS_COUNT(edev));
2039
2040         rc = qede_set_real_num_queues(edev);
2041         if (rc)
2042                 goto err2;
2043
2044 #ifdef CONFIG_RFS_ACCEL
2045         if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
2046                 rc = qede_alloc_arfs(edev);
2047                 if (rc)
2048                         DP_NOTICE(edev, "aRFS memory allocation failed\n");
2049         }
2050 #endif
2051         qede_napi_add_enable(edev);
2052         DP_INFO(edev, "Napi added and enabled\n");
2053
2054         rc = qede_setup_irqs(edev);
2055         if (rc)
2056                 goto err3;
2057         DP_INFO(edev, "Setup IRQs succeeded\n");
2058
2059         rc = qede_start_queues(edev, mode != QEDE_LOAD_RELOAD);
2060         if (rc)
2061                 goto err4;
2062         DP_INFO(edev, "Start VPORT, RXQ and TXQ succeeded\n");
2063
2064         /* Program un-configured VLANs */
2065         qede_configure_vlan_filters(edev);
2066
2067         /* Ask for link-up using current configuration */
2068         memset(&link_params, 0, sizeof(link_params));
2069         link_params.link_up = true;
2070         edev->ops->common->set_link(edev->cdev, &link_params);
2071
2072         qede_rdma_dev_event_open(edev);
2073
2074         edev->state = QEDE_STATE_OPEN;
2075
2076         DP_INFO(edev, "Ending successfully qede load\n");
2077
2078         goto out;
2079 err4:
2080         qede_sync_free_irqs(edev);
2081         memset(&edev->int_info.msix_cnt, 0, sizeof(struct qed_int_info));
2082 err3:
2083         qede_napi_disable_remove(edev);
2084 err2:
2085         qede_free_mem_load(edev);
2086 err1:
2087         edev->ops->common->set_fp_int(edev->cdev, 0);
2088         qede_free_fp_array(edev);
2089         edev->num_queues = 0;
2090         edev->fp_num_tx = 0;
2091         edev->fp_num_rx = 0;
2092 out:
2093         if (!is_locked)
2094                 __qede_unlock(edev);
2095
2096         return rc;
2097 }
2098
2099 /* 'func' should be able to run between unload and reload assuming interface
2100  * is actually running, or afterwards in case it's currently DOWN.
2101  */
2102 void qede_reload(struct qede_dev *edev,
2103                  struct qede_reload_args *args, bool is_locked)
2104 {
2105         if (!is_locked)
2106                 __qede_lock(edev);
2107
2108         /* Since qede_lock is held, internal state wouldn't change even
2109          * if netdev state would start transitioning. Check whether current
2110          * internal configuration indicates device is up, then reload.
2111          */
2112         if (edev->state == QEDE_STATE_OPEN) {
2113                 qede_unload(edev, QEDE_UNLOAD_NORMAL, true);
2114                 if (args)
2115                         args->func(edev, args);
2116                 qede_load(edev, QEDE_LOAD_RELOAD, true);
2117
2118                 /* Since no one is going to do it for us, re-configure */
2119                 qede_config_rx_mode(edev->ndev);
2120         } else if (args) {
2121                 args->func(edev, args);
2122         }
2123
2124         if (!is_locked)
2125                 __qede_unlock(edev);
2126 }
2127
2128 /* called with rtnl_lock */
2129 static int qede_open(struct net_device *ndev)
2130 {
2131         struct qede_dev *edev = netdev_priv(ndev);
2132         int rc;
2133
2134         netif_carrier_off(ndev);
2135
2136         edev->ops->common->set_power_state(edev->cdev, PCI_D0);
2137
2138         rc = qede_load(edev, QEDE_LOAD_NORMAL, false);
2139         if (rc)
2140                 return rc;
2141
2142         udp_tunnel_get_rx_info(ndev);
2143
2144         edev->ops->common->update_drv_state(edev->cdev, true);
2145
2146         return 0;
2147 }
2148
2149 static int qede_close(struct net_device *ndev)
2150 {
2151         struct qede_dev *edev = netdev_priv(ndev);
2152
2153         qede_unload(edev, QEDE_UNLOAD_NORMAL, false);
2154
2155         edev->ops->common->update_drv_state(edev->cdev, false);
2156
2157         return 0;
2158 }
2159
2160 static void qede_link_update(void *dev, struct qed_link_output *link)
2161 {
2162         struct qede_dev *edev = dev;
2163
2164         if (!netif_running(edev->ndev)) {
2165                 DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not running\n");
2166                 return;
2167         }
2168
2169         if (link->link_up) {
2170                 if (!netif_carrier_ok(edev->ndev)) {
2171                         DP_NOTICE(edev, "Link is up\n");
2172                         netif_tx_start_all_queues(edev->ndev);
2173                         netif_carrier_on(edev->ndev);
2174                 }
2175         } else {
2176                 if (netif_carrier_ok(edev->ndev)) {
2177                         DP_NOTICE(edev, "Link is down\n");
2178                         netif_tx_disable(edev->ndev);
2179                         netif_carrier_off(edev->ndev);
2180                 }
2181         }
2182 }