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/crash_dump.h>
  33 #include <linux/module.h>
  34 #include <linux/pci.h>
  35 #include <linux/version.h>
  36 #include <linux/device.h>
  37 #include <linux/netdevice.h>
  38 #include <linux/etherdevice.h>
  39 #include <linux/skbuff.h>
  40 #include <linux/errno.h>
  41 #include <linux/list.h>
  42 #include <linux/string.h>
  43 #include <linux/dma-mapping.h>
  44 #include <linux/interrupt.h>
  45 #include <asm/byteorder.h>
  46 #include <asm/param.h>
  47 #include <linux/io.h>
  48 #include <linux/netdev_features.h>
  49 #include <linux/udp.h>
  50 #include <linux/tcp.h>
  51 #include <net/udp_tunnel.h>
  52 #include <linux/ip.h>
  53 #include <net/ipv6.h>
  54 #include <net/tcp.h>
  55 #include <linux/if_ether.h>
  56 #include <linux/if_vlan.h>
  57 #include <linux/pkt_sched.h>
  58 #include <linux/ethtool.h>
  59 #include <linux/in.h>
  60 #include <linux/random.h>
  61 #include <net/ip6_checksum.h>
  62 #include <linux/bitops.h>
  63 #include <linux/vmalloc.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_name(edev->cdev, edev->ndev->name);
 263                 break;
 264         case NETDEV_CHANGEADDR:
 265                 edev = netdev_priv(ndev);
 266                 qede_rdma_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 static const struct net_device_ops qede_netdev_vf_xdp_ops = {
 584         .ndo_open = qede_open,
 585         .ndo_stop = qede_close,
 586         .ndo_start_xmit = qede_start_xmit,
 587         .ndo_set_rx_mode = qede_set_rx_mode,
 588         .ndo_set_mac_address = qede_set_mac_addr,
 589         .ndo_validate_addr = eth_validate_addr,
 590         .ndo_change_mtu = qede_change_mtu,
 591         .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
 592         .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
 593         .ndo_set_features = qede_set_features,
 594         .ndo_get_stats64 = qede_get_stats64,
 595         .ndo_udp_tunnel_add = qede_udp_tunnel_add,
 596         .ndo_udp_tunnel_del = qede_udp_tunnel_del,
 597         .ndo_features_check = qede_features_check,
 598         .ndo_xdp = qede_xdp,
 599 };
 600
 601 /* -------------------------------------------------------------------------
 602  * START OF PROBE / REMOVE
 603  * -------------------------------------------------------------------------
 604  */
 605
 606 static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev,
 607                                             struct pci_dev *pdev,
 608                                             struct qed_dev_eth_info *info,
 609                                             u32 dp_module, u8 dp_level)
 610 {
 611         struct net_device *ndev;
 612         struct qede_dev *edev;
 613
 614         ndev = alloc_etherdev_mqs(sizeof(*edev),
 615                                   info->num_queues, info->num_queues);
 616         if (!ndev) {
 617                 pr_err("etherdev allocation failed\n");
 618                 return NULL;
 619         }
 620
 621         edev = netdev_priv(ndev);
 622         edev->ndev = ndev;
 623         edev->cdev = cdev;
 624         edev->pdev = pdev;
 625         edev->dp_module = dp_module;
 626         edev->dp_level = dp_level;
 627         edev->ops = qed_ops;
 628
 629         if (is_kdump_kernel()) {
 630                 edev->q_num_rx_buffers = NUM_RX_BDS_KDUMP_MIN;
 631                 edev->q_num_tx_buffers = NUM_TX_BDS_KDUMP_MIN;
 632         } else {
 633                 edev->q_num_rx_buffers = NUM_RX_BDS_DEF;
 634                 edev->q_num_tx_buffers = NUM_TX_BDS_DEF;
 635         }
 636
 637         DP_INFO(edev, "Allocated netdev with %d tx queues and %d rx queues\n",
 638                 info->num_queues, info->num_queues);
 639
 640         SET_NETDEV_DEV(ndev, &pdev->dev);
 641
 642         memset(&edev->stats, 0, sizeof(edev->stats));
 643         memcpy(&edev->dev_info, info, sizeof(*info));
 644
 645         /* As ethtool doesn't have the ability to show WoL behavior as
 646          * 'default', if device supports it declare it's enabled.
 647          */
 648         if (edev->dev_info.common.wol_support)
 649                 edev->wol_enabled = true;
 650
 651         INIT_LIST_HEAD(&edev->vlan_list);
 652
 653         return edev;
 654 }
 655
 656 static void qede_init_ndev(struct qede_dev *edev)
 657 {
 658         struct net_device *ndev = edev->ndev;
 659         struct pci_dev *pdev = edev->pdev;
 660         bool udp_tunnel_enable = false;
 661         netdev_features_t hw_features;
 662
 663         pci_set_drvdata(pdev, ndev);
 664
 665         ndev->mem_start = edev->dev_info.common.pci_mem_start;
 666         ndev->base_addr = ndev->mem_start;
 667         ndev->mem_end = edev->dev_info.common.pci_mem_end;
 668         ndev->irq = edev->dev_info.common.pci_irq;
 669
 670         ndev->watchdog_timeo = TX_TIMEOUT;
 671
 672         if (IS_VF(edev)) {
 673                 if (edev->dev_info.xdp_supported)
 674                         ndev->netdev_ops = &qede_netdev_vf_xdp_ops;
 675                 else
 676                         ndev->netdev_ops = &qede_netdev_vf_ops;
 677         } else {
 678                 ndev->netdev_ops = &qede_netdev_ops;
 679         }
 680
 681         qede_set_ethtool_ops(ndev);
 682
 683         ndev->priv_flags |= IFF_UNICAST_FLT;
 684
 685         /* user-changeble features */
 686         hw_features = NETIF_F_GRO | NETIF_F_SG |
 687                       NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
 688                       NETIF_F_TSO | NETIF_F_TSO6;
 689
 690         if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1)
 691                 hw_features |= NETIF_F_NTUPLE;
 692
 693         if (edev->dev_info.common.vxlan_enable ||
 694             edev->dev_info.common.geneve_enable)
 695                 udp_tunnel_enable = true;
 696
 697         if (udp_tunnel_enable || edev->dev_info.common.gre_enable) {
 698                 hw_features |= NETIF_F_TSO_ECN;
 699                 ndev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
 700                                         NETIF_F_SG | NETIF_F_TSO |
 701                                         NETIF_F_TSO_ECN | NETIF_F_TSO6 |
 702                                         NETIF_F_RXCSUM;
 703         }
 704
 705         if (udp_tunnel_enable) {
 706                 hw_features |= (NETIF_F_GSO_UDP_TUNNEL |
 707                                 NETIF_F_GSO_UDP_TUNNEL_CSUM);
 708                 ndev->hw_enc_features |= (NETIF_F_GSO_UDP_TUNNEL |
 709                                           NETIF_F_GSO_UDP_TUNNEL_CSUM);
 710         }
 711
 712         if (edev->dev_info.common.gre_enable) {
 713                 hw_features |= (NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM);
 714                 ndev->hw_enc_features |= (NETIF_F_GSO_GRE |
 715                                           NETIF_F_GSO_GRE_CSUM);
 716         }
 717
 718         ndev->vlan_features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
 719                               NETIF_F_HIGHDMA;
 720         ndev->features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
 721                          NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA |
 722                          NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_TX;
 723
 724         ndev->hw_features = hw_features;
 725
 726         /* MTU range: 46 - 9600 */
 727         ndev->min_mtu = ETH_ZLEN - ETH_HLEN;
 728         ndev->max_mtu = QEDE_MAX_JUMBO_PACKET_SIZE;
 729
 730         /* Set network device HW mac */
 731         ether_addr_copy(edev->ndev->dev_addr, edev->dev_info.common.hw_mac);
 732
 733         ndev->mtu = edev->dev_info.common.mtu;
 734 }
 735
 736 /* This function converts from 32b param to two params of level and module
 737  * Input 32b decoding:
 738  * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
 739  * 'happy' flow, e.g. memory allocation failed.
 740  * b30 - enable all INFO prints. INFO prints are for major steps in the flow
 741  * and provide important parameters.
 742  * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
 743  * module. VERBOSE prints are for tracking the specific flow in low level.
 744  *
 745  * Notice that the level should be that of the lowest required logs.
 746  */
 747 void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level)
 748 {
 749         *p_dp_level = QED_LEVEL_NOTICE;
 750         *p_dp_module = 0;
 751
 752         if (debug & QED_LOG_VERBOSE_MASK) {
 753                 *p_dp_level = QED_LEVEL_VERBOSE;
 754                 *p_dp_module = (debug & 0x3FFFFFFF);
 755         } else if (debug & QED_LOG_INFO_MASK) {
 756                 *p_dp_level = QED_LEVEL_INFO;
 757         } else if (debug & QED_LOG_NOTICE_MASK) {
 758                 *p_dp_level = QED_LEVEL_NOTICE;
 759         }
 760 }
 761
 762 static void qede_free_fp_array(struct qede_dev *edev)
 763 {
 764         if (edev->fp_array) {
 765                 struct qede_fastpath *fp;
 766                 int i;
 767
 768                 for_each_queue(i) {
 769                         fp = &edev->fp_array[i];
 770
 771                         kfree(fp->sb_info);
 772                         kfree(fp->rxq);
 773                         kfree(fp->xdp_tx);
 774                         kfree(fp->txq);
 775                 }
 776                 kfree(edev->fp_array);
 777         }
 778
 779         edev->num_queues = 0;
 780         edev->fp_num_tx = 0;
 781         edev->fp_num_rx = 0;
 782 }
 783
 784 static int qede_alloc_fp_array(struct qede_dev *edev)
 785 {
 786         u8 fp_combined, fp_rx = edev->fp_num_rx;
 787         struct qede_fastpath *fp;
 788         int i;
 789
 790         edev->fp_array = kcalloc(QEDE_QUEUE_CNT(edev),
 791                                  sizeof(*edev->fp_array), GFP_KERNEL);
 792         if (!edev->fp_array) {
 793                 DP_NOTICE(edev, "fp array allocation failed\n");
 794                 goto err;
 795         }
 796
 797         fp_combined = QEDE_QUEUE_CNT(edev) - fp_rx - edev->fp_num_tx;
 798
 799         /* Allocate the FP elements for Rx queues followed by combined and then
 800          * the Tx. This ordering should be maintained so that the respective
 801          * queues (Rx or Tx) will be together in the fastpath array and the
 802          * associated ids will be sequential.
 803          */
 804         for_each_queue(i) {
 805                 fp = &edev->fp_array[i];
 806
 807                 fp->sb_info = kzalloc(sizeof(*fp->sb_info), GFP_KERNEL);
 808                 if (!fp->sb_info) {
 809                         DP_NOTICE(edev, "sb info struct allocation failed\n");
 810                         goto err;
 811                 }
 812
 813                 if (fp_rx) {
 814                         fp->type = QEDE_FASTPATH_RX;
 815                         fp_rx--;
 816                 } else if (fp_combined) {
 817                         fp->type = QEDE_FASTPATH_COMBINED;
 818                         fp_combined--;
 819                 } else {
 820                         fp->type = QEDE_FASTPATH_TX;
 821                 }
 822
 823                 if (fp->type & QEDE_FASTPATH_TX) {
 824                         fp->txq = kzalloc(sizeof(*fp->txq), GFP_KERNEL);
 825                         if (!fp->txq)
 826                                 goto err;
 827                 }
 828
 829                 if (fp->type & QEDE_FASTPATH_RX) {
 830                         fp->rxq = kzalloc(sizeof(*fp->rxq), GFP_KERNEL);
 831                         if (!fp->rxq)
 832                                 goto err;
 833
 834                         if (edev->xdp_prog) {
 835                                 fp->xdp_tx = kzalloc(sizeof(*fp->xdp_tx),
 836                                                      GFP_KERNEL);
 837                                 if (!fp->xdp_tx)
 838                                         goto err;
 839                                 fp->type |= QEDE_FASTPATH_XDP;
 840                         }
 841                 }
 842         }
 843
 844         return 0;
 845 err:
 846         qede_free_fp_array(edev);
 847         return -ENOMEM;
 848 }
 849
 850 static void qede_sp_task(struct work_struct *work)
 851 {
 852         struct qede_dev *edev = container_of(work, struct qede_dev,
 853                                              sp_task.work);
 854
 855         __qede_lock(edev);
 856
 857         if (test_and_clear_bit(QEDE_SP_RX_MODE, &edev->sp_flags))
 858                 if (edev->state == QEDE_STATE_OPEN)
 859                         qede_config_rx_mode(edev->ndev);
 860
 861 #ifdef CONFIG_RFS_ACCEL
 862         if (test_and_clear_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags)) {
 863                 if (edev->state == QEDE_STATE_OPEN)
 864                         qede_process_arfs_filters(edev, false);
 865         }
 866 #endif
 867         __qede_unlock(edev);
 868 }
 869
 870 static void qede_update_pf_params(struct qed_dev *cdev)
 871 {
 872         struct qed_pf_params pf_params;
 873
 874         /* 64 rx + 64 tx + 64 XDP */
 875         memset(&pf_params, 0, sizeof(struct qed_pf_params));
 876         pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * 3;
 877
 878         /* Same for VFs - make sure they'll have sufficient connections
 879          * to support XDP Tx queues.
 880          */
 881         pf_params.eth_pf_params.num_vf_cons = 48;
 882
 883         pf_params.eth_pf_params.num_arfs_filters = QEDE_RFS_MAX_FLTR;
 884         qed_ops->common->update_pf_params(cdev, &pf_params);
 885 }
 886
 887 #define QEDE_FW_VER_STR_SIZE    80
 888
 889 static void qede_log_probe(struct qede_dev *edev)
 890 {
 891         struct qed_dev_info *p_dev_info = &edev->dev_info.common;
 892         u8 buf[QEDE_FW_VER_STR_SIZE];
 893         size_t left_size;
 894
 895         snprintf(buf, QEDE_FW_VER_STR_SIZE,
 896                  "Storm FW %d.%d.%d.%d, Management FW %d.%d.%d.%d",
 897                  p_dev_info->fw_major, p_dev_info->fw_minor, p_dev_info->fw_rev,
 898                  p_dev_info->fw_eng,
 899                  (p_dev_info->mfw_rev & QED_MFW_VERSION_3_MASK) >>
 900                  QED_MFW_VERSION_3_OFFSET,
 901                  (p_dev_info->mfw_rev & QED_MFW_VERSION_2_MASK) >>
 902                  QED_MFW_VERSION_2_OFFSET,
 903                  (p_dev_info->mfw_rev & QED_MFW_VERSION_1_MASK) >>
 904                  QED_MFW_VERSION_1_OFFSET,
 905                  (p_dev_info->mfw_rev & QED_MFW_VERSION_0_MASK) >>
 906                  QED_MFW_VERSION_0_OFFSET);
 907
 908         left_size = QEDE_FW_VER_STR_SIZE - strlen(buf);
 909         if (p_dev_info->mbi_version && left_size)
 910                 snprintf(buf + strlen(buf), left_size,
 911                          " [MBI %d.%d.%d]",
 912                          (p_dev_info->mbi_version & QED_MBI_VERSION_2_MASK) >>
 913                          QED_MBI_VERSION_2_OFFSET,
 914                          (p_dev_info->mbi_version & QED_MBI_VERSION_1_MASK) >>
 915                          QED_MBI_VERSION_1_OFFSET,
 916                          (p_dev_info->mbi_version & QED_MBI_VERSION_0_MASK) >>
 917                          QED_MBI_VERSION_0_OFFSET);
 918
 919         pr_info("qede %02x:%02x.%02x: %s [%s]\n", edev->pdev->bus->number,
 920                 PCI_SLOT(edev->pdev->devfn), PCI_FUNC(edev->pdev->devfn),
 921                 buf, edev->ndev->name);
 922 }
 923
 924 enum qede_probe_mode {
 925         QEDE_PROBE_NORMAL,
 926 };
 927
 928 static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
 929                         bool is_vf, enum qede_probe_mode mode)
 930 {
 931         struct qed_probe_params probe_params;
 932         struct qed_slowpath_params sp_params;
 933         struct qed_dev_eth_info dev_info;
 934         struct qede_dev *edev;
 935         struct qed_dev *cdev;
 936         int rc;
 937
 938         if (unlikely(dp_level & QED_LEVEL_INFO))
 939                 pr_notice("Starting qede probe\n");
 940
 941         memset(&probe_params, 0, sizeof(probe_params));
 942         probe_params.protocol = QED_PROTOCOL_ETH;
 943         probe_params.dp_module = dp_module;
 944         probe_params.dp_level = dp_level;
 945         probe_params.is_vf = is_vf;
 946         cdev = qed_ops->common->probe(pdev, &probe_params);
 947         if (!cdev) {
 948                 rc = -ENODEV;
 949                 goto err0;
 950         }
 951
 952         qede_update_pf_params(cdev);
 953
 954         /* Start the Slowpath-process */
 955         memset(&sp_params, 0, sizeof(sp_params));
 956         sp_params.int_mode = QED_INT_MODE_MSIX;
 957         sp_params.drv_major = QEDE_MAJOR_VERSION;
 958         sp_params.drv_minor = QEDE_MINOR_VERSION;
 959         sp_params.drv_rev = QEDE_REVISION_VERSION;
 960         sp_params.drv_eng = QEDE_ENGINEERING_VERSION;
 961         strlcpy(sp_params.name, "qede LAN", QED_DRV_VER_STR_SIZE);
 962         rc = qed_ops->common->slowpath_start(cdev, &sp_params);
 963         if (rc) {
 964                 pr_notice("Cannot start slowpath\n");
 965                 goto err1;
 966         }
 967
 968         /* Learn information crucial for qede to progress */
 969         rc = qed_ops->fill_dev_info(cdev, &dev_info);
 970         if (rc)
 971                 goto err2;
 972
 973         edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module,
 974                                    dp_level);
 975         if (!edev) {
 976                 rc = -ENOMEM;
 977                 goto err2;
 978         }
 979
 980         if (is_vf)
 981                 edev->flags |= QEDE_FLAG_IS_VF;
 982
 983         qede_init_ndev(edev);
 984
 985         rc = qede_rdma_dev_add(edev);
 986         if (rc)
 987                 goto err3;
 988
 989         /* Prepare the lock prior to the registeration of the netdev,
 990          * as once it's registered we might reach flows requiring it
 991          * [it's even possible to reach a flow needing it directly
 992          * from there, although it's unlikely].
 993          */
 994         INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task);
 995         mutex_init(&edev->qede_lock);
 996         rc = register_netdev(edev->ndev);
 997         if (rc) {
 998                 DP_NOTICE(edev, "Cannot register net-device\n");
 999                 goto err4;
1000         }
1001
1002         edev->ops->common->set_name(cdev, edev->ndev->name);
1003
1004         /* PTP not supported on VFs */
1005         if (!is_vf)
1006                 qede_ptp_enable(edev, true);
1007
1008         edev->ops->register_ops(cdev, &qede_ll_ops, edev);
1009
1010 #ifdef CONFIG_DCB
1011         if (!IS_VF(edev))
1012                 qede_set_dcbnl_ops(edev->ndev);
1013 #endif
1014
1015         edev->rx_copybreak = QEDE_RX_HDR_SIZE;
1016
1017         qede_log_probe(edev);
1018         return 0;
1019
1020 err4:
1021         qede_rdma_dev_remove(edev);
1022 err3:
1023         free_netdev(edev->ndev);
1024 err2:
1025         qed_ops->common->slowpath_stop(cdev);
1026 err1:
1027         qed_ops->common->remove(cdev);
1028 err0:
1029         return rc;
1030 }
1031
1032 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1033 {
1034         bool is_vf = false;
1035         u32 dp_module = 0;
1036         u8 dp_level = 0;
1037
1038         switch ((enum qede_pci_private)id->driver_data) {
1039         case QEDE_PRIVATE_VF:
1040                 if (debug & QED_LOG_VERBOSE_MASK)
1041                         dev_err(&pdev->dev, "Probing a VF\n");
1042                 is_vf = true;
1043                 break;
1044         default:
1045                 if (debug & QED_LOG_VERBOSE_MASK)
1046                         dev_err(&pdev->dev, "Probing a PF\n");
1047         }
1048
1049         qede_config_debug(debug, &dp_module, &dp_level);
1050
1051         return __qede_probe(pdev, dp_module, dp_level, is_vf,
1052                             QEDE_PROBE_NORMAL);
1053 }
1054
1055 enum qede_remove_mode {
1056         QEDE_REMOVE_NORMAL,
1057 };
1058
1059 static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode)
1060 {
1061         struct net_device *ndev = pci_get_drvdata(pdev);
1062         struct qede_dev *edev;
1063         struct qed_dev *cdev;
1064
1065         if (!ndev) {
1066                 dev_info(&pdev->dev, "Device has already been removed\n");
1067                 return;
1068         }
1069
1070         edev = netdev_priv(ndev);
1071         cdev = edev->cdev;
1072
1073         DP_INFO(edev, "Starting qede_remove\n");
1074
1075         unregister_netdev(ndev);
1076         cancel_delayed_work_sync(&edev->sp_task);
1077
1078         qede_ptp_disable(edev);
1079
1080         qede_rdma_dev_remove(edev);
1081
1082         edev->ops->common->set_power_state(cdev, PCI_D0);
1083
1084         pci_set_drvdata(pdev, NULL);
1085
1086         /* Release edev's reference to XDP's bpf if such exist */
1087         if (edev->xdp_prog)
1088                 bpf_prog_put(edev->xdp_prog);
1089
1090         /* Use global ops since we've freed edev */
1091         qed_ops->common->slowpath_stop(cdev);
1092         if (system_state == SYSTEM_POWER_OFF)
1093                 return;
1094         qed_ops->common->remove(cdev);
1095
1096         /* Since this can happen out-of-sync with other flows,
1097          * don't release the netdevice until after slowpath stop
1098          * has been called to guarantee various other contexts
1099          * [e.g., QED register callbacks] won't break anything when
1100          * accessing the netdevice.
1101          */
1102          free_netdev(ndev);
1103
1104         dev_info(&pdev->dev, "Ending qede_remove successfully\n");
1105 }
1106
1107 static void qede_remove(struct pci_dev *pdev)
1108 {
1109         __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1110 }
1111
1112 static void qede_shutdown(struct pci_dev *pdev)
1113 {
1114         __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1115 }
1116
1117 /* -------------------------------------------------------------------------
1118  * START OF LOAD / UNLOAD
1119  * -------------------------------------------------------------------------
1120  */
1121
1122 static int qede_set_num_queues(struct qede_dev *edev)
1123 {
1124         int rc;
1125         u16 rss_num;
1126
1127         /* Setup queues according to possible resources*/
1128         if (edev->req_queues)
1129                 rss_num = edev->req_queues;
1130         else
1131                 rss_num = netif_get_num_default_rss_queues() *
1132                           edev->dev_info.common.num_hwfns;
1133
1134         rss_num = min_t(u16, QEDE_MAX_RSS_CNT(edev), rss_num);
1135
1136         rc = edev->ops->common->set_fp_int(edev->cdev, rss_num);
1137         if (rc > 0) {
1138                 /* Managed to request interrupts for our queues */
1139                 edev->num_queues = rc;
1140                 DP_INFO(edev, "Managed %d [of %d] RSS queues\n",
1141                         QEDE_QUEUE_CNT(edev), rss_num);
1142                 rc = 0;
1143         }
1144
1145         edev->fp_num_tx = edev->req_num_tx;
1146         edev->fp_num_rx = edev->req_num_rx;
1147
1148         return rc;
1149 }
1150
1151 static void qede_free_mem_sb(struct qede_dev *edev, struct qed_sb_info *sb_info,
1152                              u16 sb_id)
1153 {
1154         if (sb_info->sb_virt) {
1155                 edev->ops->common->sb_release(edev->cdev, sb_info, sb_id);
1156                 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_info->sb_virt),
1157                                   (void *)sb_info->sb_virt, sb_info->sb_phys);
1158                 memset(sb_info, 0, sizeof(*sb_info));
1159         }
1160 }
1161
1162 /* This function allocates fast-path status block memory */
1163 static int qede_alloc_mem_sb(struct qede_dev *edev,
1164                              struct qed_sb_info *sb_info, u16 sb_id)
1165 {
1166         struct status_block *sb_virt;
1167         dma_addr_t sb_phys;
1168         int rc;
1169
1170         sb_virt = dma_alloc_coherent(&edev->pdev->dev,
1171                                      sizeof(*sb_virt), &sb_phys, GFP_KERNEL);
1172         if (!sb_virt) {
1173                 DP_ERR(edev, "Status block allocation failed\n");
1174                 return -ENOMEM;
1175         }
1176
1177         rc = edev->ops->common->sb_init(edev->cdev, sb_info,
1178                                         sb_virt, sb_phys, sb_id,
1179                                         QED_SB_TYPE_L2_QUEUE);
1180         if (rc) {
1181                 DP_ERR(edev, "Status block initialization failed\n");
1182                 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_virt),
1183                                   sb_virt, sb_phys);
1184                 return rc;
1185         }
1186
1187         return 0;
1188 }
1189
1190 static void qede_free_rx_buffers(struct qede_dev *edev,
1191                                  struct qede_rx_queue *rxq)
1192 {
1193         u16 i;
1194
1195         for (i = rxq->sw_rx_cons; i != rxq->sw_rx_prod; i++) {
1196                 struct sw_rx_data *rx_buf;
1197                 struct page *data;
1198
1199                 rx_buf = &rxq->sw_rx_ring[i & NUM_RX_BDS_MAX];
1200                 data = rx_buf->data;
1201
1202                 dma_unmap_page(&edev->pdev->dev,
1203                                rx_buf->mapping, PAGE_SIZE, rxq->data_direction);
1204
1205                 rx_buf->data = NULL;
1206                 __free_page(data);
1207         }
1208 }
1209
1210 static void qede_free_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1211 {
1212         int i;
1213
1214         if (edev->gro_disable)
1215                 return;
1216
1217         for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1218                 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1219                 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1220
1221                 if (replace_buf->data) {
1222                         dma_unmap_page(&edev->pdev->dev,
1223                                        replace_buf->mapping,
1224                                        PAGE_SIZE, DMA_FROM_DEVICE);
1225                         __free_page(replace_buf->data);
1226                 }
1227         }
1228 }
1229
1230 static void qede_free_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1231 {
1232         qede_free_sge_mem(edev, rxq);
1233
1234         /* Free rx buffers */
1235         qede_free_rx_buffers(edev, rxq);
1236
1237         /* Free the parallel SW ring */
1238         kfree(rxq->sw_rx_ring);
1239
1240         /* Free the real RQ ring used by FW */
1241         edev->ops->common->chain_free(edev->cdev, &rxq->rx_bd_ring);
1242         edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring);
1243 }
1244
1245 static int qede_alloc_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1246 {
1247         dma_addr_t mapping;
1248         int i;
1249
1250         /* Don't perform FW aggregations in case of XDP */
1251         if (edev->xdp_prog)
1252                 edev->gro_disable = 1;
1253
1254         if (edev->gro_disable)
1255                 return 0;
1256
1257         if (edev->ndev->mtu > PAGE_SIZE) {
1258                 edev->gro_disable = 1;
1259                 return 0;
1260         }
1261
1262         for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1263                 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1264                 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1265
1266                 replace_buf->data = alloc_pages(GFP_ATOMIC, 0);
1267                 if (unlikely(!replace_buf->data)) {
1268                         DP_NOTICE(edev,
1269                                   "Failed to allocate TPA skb pool [replacement buffer]\n");
1270                         goto err;
1271                 }
1272
1273                 mapping = dma_map_page(&edev->pdev->dev, replace_buf->data, 0,
1274                                        PAGE_SIZE, DMA_FROM_DEVICE);
1275                 if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) {
1276                         DP_NOTICE(edev,
1277                                   "Failed to map TPA replacement buffer\n");
1278                         goto err;
1279                 }
1280
1281                 replace_buf->mapping = mapping;
1282                 tpa_info->buffer.page_offset = 0;
1283                 tpa_info->buffer_mapping = mapping;
1284                 tpa_info->state = QEDE_AGG_STATE_NONE;
1285         }
1286
1287         return 0;
1288 err:
1289         qede_free_sge_mem(edev, rxq);
1290         edev->gro_disable = 1;
1291         return -ENOMEM;
1292 }
1293
1294 /* This function allocates all memory needed per Rx queue */
1295 static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1296 {
1297         int i, rc, size;
1298
1299         rxq->num_rx_buffers = edev->q_num_rx_buffers;
1300
1301         rxq->rx_buf_size = NET_IP_ALIGN + ETH_OVERHEAD + edev->ndev->mtu;
1302         rxq->rx_headroom = edev->xdp_prog ? XDP_PACKET_HEADROOM : 0;
1303
1304         /* Make sure that the headroom and  payload fit in a single page */
1305         if (rxq->rx_buf_size + rxq->rx_headroom > PAGE_SIZE)
1306                 rxq->rx_buf_size = PAGE_SIZE - rxq->rx_headroom;
1307
1308         /* Segment size to spilt a page in multiple equal parts,
1309          * unless XDP is used in which case we'd use the entire page.
1310          */
1311         if (!edev->xdp_prog)
1312                 rxq->rx_buf_seg_size = roundup_pow_of_two(rxq->rx_buf_size);
1313         else
1314                 rxq->rx_buf_seg_size = PAGE_SIZE;
1315
1316         /* Allocate the parallel driver ring for Rx buffers */
1317         size = sizeof(*rxq->sw_rx_ring) * RX_RING_SIZE;
1318         rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL);
1319         if (!rxq->sw_rx_ring) {
1320                 DP_ERR(edev, "Rx buffers ring allocation failed\n");
1321                 rc = -ENOMEM;
1322                 goto err;
1323         }
1324
1325         /* Allocate FW Rx ring  */
1326         rc = edev->ops->common->chain_alloc(edev->cdev,
1327                                             QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1328                                             QED_CHAIN_MODE_NEXT_PTR,
1329                                             QED_CHAIN_CNT_TYPE_U16,
1330                                             RX_RING_SIZE,
1331                                             sizeof(struct eth_rx_bd),
1332                                             &rxq->rx_bd_ring, NULL);
1333         if (rc)
1334                 goto err;
1335
1336         /* Allocate FW completion ring */
1337         rc = edev->ops->common->chain_alloc(edev->cdev,
1338                                             QED_CHAIN_USE_TO_CONSUME,
1339                                             QED_CHAIN_MODE_PBL,
1340                                             QED_CHAIN_CNT_TYPE_U16,
1341                                             RX_RING_SIZE,
1342                                             sizeof(union eth_rx_cqe),
1343                                             &rxq->rx_comp_ring, NULL);
1344         if (rc)
1345                 goto err;
1346
1347         /* Allocate buffers for the Rx ring */
1348         rxq->filled_buffers = 0;
1349         for (i = 0; i < rxq->num_rx_buffers; i++) {
1350                 rc = qede_alloc_rx_buffer(rxq, false);
1351                 if (rc) {
1352                         DP_ERR(edev,
1353                                "Rx buffers allocation failed at index %d\n", i);
1354                         goto err;
1355                 }
1356         }
1357
1358         rc = qede_alloc_sge_mem(edev, rxq);
1359 err:
1360         return rc;
1361 }
1362
1363 static void qede_free_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1364 {
1365         /* Free the parallel SW ring */
1366         if (txq->is_xdp)
1367                 kfree(txq->sw_tx_ring.xdp);
1368         else
1369                 kfree(txq->sw_tx_ring.skbs);
1370
1371         /* Free the real RQ ring used by FW */
1372         edev->ops->common->chain_free(edev->cdev, &txq->tx_pbl);
1373 }
1374
1375 /* This function allocates all memory needed per Tx queue */
1376 static int qede_alloc_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1377 {
1378         union eth_tx_bd_types *p_virt;
1379         int size, rc;
1380
1381         txq->num_tx_buffers = edev->q_num_tx_buffers;
1382
1383         /* Allocate the parallel driver ring for Tx buffers */
1384         if (txq->is_xdp) {
1385                 size = sizeof(*txq->sw_tx_ring.xdp) * txq->num_tx_buffers;
1386                 txq->sw_tx_ring.xdp = kzalloc(size, GFP_KERNEL);
1387                 if (!txq->sw_tx_ring.xdp)
1388                         goto err;
1389         } else {
1390                 size = sizeof(*txq->sw_tx_ring.skbs) * txq->num_tx_buffers;
1391                 txq->sw_tx_ring.skbs = kzalloc(size, GFP_KERNEL);
1392                 if (!txq->sw_tx_ring.skbs)
1393                         goto err;
1394         }
1395
1396         rc = edev->ops->common->chain_alloc(edev->cdev,
1397                                             QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1398                                             QED_CHAIN_MODE_PBL,
1399                                             QED_CHAIN_CNT_TYPE_U16,
1400                                             txq->num_tx_buffers,
1401                                             sizeof(*p_virt),
1402                                             &txq->tx_pbl, NULL);
1403         if (rc)
1404                 goto err;
1405
1406         return 0;
1407
1408 err:
1409         qede_free_mem_txq(edev, txq);
1410         return -ENOMEM;
1411 }
1412
1413 /* This function frees all memory of a single fp */
1414 static void qede_free_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1415 {
1416         qede_free_mem_sb(edev, fp->sb_info, fp->id);
1417
1418         if (fp->type & QEDE_FASTPATH_RX)
1419                 qede_free_mem_rxq(edev, fp->rxq);
1420
1421         if (fp->type & QEDE_FASTPATH_XDP)
1422                 qede_free_mem_txq(edev, fp->xdp_tx);
1423
1424         if (fp->type & QEDE_FASTPATH_TX)
1425                 qede_free_mem_txq(edev, fp->txq);
1426 }
1427
1428 /* This function allocates all memory needed for a single fp (i.e. an entity
1429  * which contains status block, one rx queue and/or multiple per-TC tx queues.
1430  */
1431 static int qede_alloc_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1432 {
1433         int rc = 0;
1434
1435         rc = qede_alloc_mem_sb(edev, fp->sb_info, fp->id);
1436         if (rc)
1437                 goto out;
1438
1439         if (fp->type & QEDE_FASTPATH_RX) {
1440                 rc = qede_alloc_mem_rxq(edev, fp->rxq);
1441                 if (rc)
1442                         goto out;
1443         }
1444
1445         if (fp->type & QEDE_FASTPATH_XDP) {
1446                 rc = qede_alloc_mem_txq(edev, fp->xdp_tx);
1447                 if (rc)
1448                         goto out;
1449         }
1450
1451         if (fp->type & QEDE_FASTPATH_TX) {
1452                 rc = qede_alloc_mem_txq(edev, fp->txq);
1453                 if (rc)
1454                         goto out;
1455         }
1456
1457 out:
1458         return rc;
1459 }
1460
1461 static void qede_free_mem_load(struct qede_dev *edev)
1462 {
1463         int i;
1464
1465         for_each_queue(i) {
1466                 struct qede_fastpath *fp = &edev->fp_array[i];
1467
1468                 qede_free_mem_fp(edev, fp);
1469         }
1470 }
1471
1472 /* This function allocates all qede memory at NIC load. */
1473 static int qede_alloc_mem_load(struct qede_dev *edev)
1474 {
1475         int rc = 0, queue_id;
1476
1477         for (queue_id = 0; queue_id < QEDE_QUEUE_CNT(edev); queue_id++) {
1478                 struct qede_fastpath *fp = &edev->fp_array[queue_id];
1479
1480                 rc = qede_alloc_mem_fp(edev, fp);
1481                 if (rc) {
1482                         DP_ERR(edev,
1483                                "Failed to allocate memory for fastpath - rss id = %d\n",
1484                                queue_id);
1485                         qede_free_mem_load(edev);
1486                         return rc;
1487                 }
1488         }
1489
1490         return 0;
1491 }
1492
1493 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
1494 static void qede_init_fp(struct qede_dev *edev)
1495 {
1496         int queue_id, rxq_index = 0, txq_index = 0;
1497         struct qede_fastpath *fp;
1498
1499         for_each_queue(queue_id) {
1500                 fp = &edev->fp_array[queue_id];
1501
1502                 fp->edev = edev;
1503                 fp->id = queue_id;
1504
1505                 if (fp->type & QEDE_FASTPATH_XDP) {
1506                         fp->xdp_tx->index = QEDE_TXQ_IDX_TO_XDP(edev,
1507                                                                 rxq_index);
1508                         fp->xdp_tx->is_xdp = 1;
1509                 }
1510
1511                 if (fp->type & QEDE_FASTPATH_RX) {
1512                         fp->rxq->rxq_id = rxq_index++;
1513
1514                         /* Determine how to map buffers for this queue */
1515                         if (fp->type & QEDE_FASTPATH_XDP)
1516                                 fp->rxq->data_direction = DMA_BIDIRECTIONAL;
1517                         else
1518                                 fp->rxq->data_direction = DMA_FROM_DEVICE;
1519                         fp->rxq->dev = &edev->pdev->dev;
1520                 }
1521
1522                 if (fp->type & QEDE_FASTPATH_TX) {
1523                         fp->txq->index = txq_index++;
1524                         if (edev->dev_info.is_legacy)
1525                                 fp->txq->is_legacy = 1;
1526                         fp->txq->dev = &edev->pdev->dev;
1527                 }
1528
1529                 snprintf(fp->name, sizeof(fp->name), "%s-fp-%d",
1530                          edev->ndev->name, queue_id);
1531         }
1532
1533         edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO);
1534 }
1535
1536 static int qede_set_real_num_queues(struct qede_dev *edev)
1537 {
1538         int rc = 0;
1539
1540         rc = netif_set_real_num_tx_queues(edev->ndev, QEDE_TSS_COUNT(edev));
1541         if (rc) {
1542                 DP_NOTICE(edev, "Failed to set real number of Tx queues\n");
1543                 return rc;
1544         }
1545
1546         rc = netif_set_real_num_rx_queues(edev->ndev, QEDE_RSS_COUNT(edev));
1547         if (rc) {
1548                 DP_NOTICE(edev, "Failed to set real number of Rx queues\n");
1549                 return rc;
1550         }
1551
1552         return 0;
1553 }
1554
1555 static void qede_napi_disable_remove(struct qede_dev *edev)
1556 {
1557         int i;
1558
1559         for_each_queue(i) {
1560                 napi_disable(&edev->fp_array[i].napi);
1561
1562                 netif_napi_del(&edev->fp_array[i].napi);
1563         }
1564 }
1565
1566 static void qede_napi_add_enable(struct qede_dev *edev)
1567 {
1568         int i;
1569
1570         /* Add NAPI objects */
1571         for_each_queue(i) {
1572                 netif_napi_add(edev->ndev, &edev->fp_array[i].napi,
1573                                qede_poll, NAPI_POLL_WEIGHT);
1574                 napi_enable(&edev->fp_array[i].napi);
1575         }
1576 }
1577
1578 static void qede_sync_free_irqs(struct qede_dev *edev)
1579 {
1580         int i;
1581
1582         for (i = 0; i < edev->int_info.used_cnt; i++) {
1583                 if (edev->int_info.msix_cnt) {
1584                         synchronize_irq(edev->int_info.msix[i].vector);
1585                         free_irq(edev->int_info.msix[i].vector,
1586                                  &edev->fp_array[i]);
1587                 } else {
1588                         edev->ops->common->simd_handler_clean(edev->cdev, i);
1589                 }
1590         }
1591
1592         edev->int_info.used_cnt = 0;
1593         edev->int_info.msix_cnt = 0;
1594 }
1595
1596 static int qede_req_msix_irqs(struct qede_dev *edev)
1597 {
1598         int i, rc;
1599
1600         /* Sanitize number of interrupts == number of prepared RSS queues */
1601         if (QEDE_QUEUE_CNT(edev) > edev->int_info.msix_cnt) {
1602                 DP_ERR(edev,
1603                        "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
1604                        QEDE_QUEUE_CNT(edev), edev->int_info.msix_cnt);
1605                 return -EINVAL;
1606         }
1607
1608         for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) {
1609 #ifdef CONFIG_RFS_ACCEL
1610                 struct qede_fastpath *fp = &edev->fp_array[i];
1611
1612                 if (edev->ndev->rx_cpu_rmap && (fp->type & QEDE_FASTPATH_RX)) {
1613                         rc = irq_cpu_rmap_add(edev->ndev->rx_cpu_rmap,
1614                                               edev->int_info.msix[i].vector);
1615                         if (rc) {
1616                                 DP_ERR(edev, "Failed to add CPU rmap\n");
1617                                 qede_free_arfs(edev);
1618                         }
1619                 }
1620 #endif
1621                 rc = request_irq(edev->int_info.msix[i].vector,
1622                                  qede_msix_fp_int, 0, edev->fp_array[i].name,
1623                                  &edev->fp_array[i]);
1624                 if (rc) {
1625                         DP_ERR(edev, "Request fp %d irq failed\n", i);
1626                         qede_sync_free_irqs(edev);
1627                         return rc;
1628                 }
1629                 DP_VERBOSE(edev, NETIF_MSG_INTR,
1630                            "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
1631                            edev->fp_array[i].name, i,
1632                            &edev->fp_array[i]);
1633                 edev->int_info.used_cnt++;
1634         }
1635
1636         return 0;
1637 }
1638
1639 static void qede_simd_fp_handler(void *cookie)
1640 {
1641         struct qede_fastpath *fp = (struct qede_fastpath *)cookie;
1642
1643         napi_schedule_irqoff(&fp->napi);
1644 }
1645
1646 static int qede_setup_irqs(struct qede_dev *edev)
1647 {
1648         int i, rc = 0;
1649
1650         /* Learn Interrupt configuration */
1651         rc = edev->ops->common->get_fp_int(edev->cdev, &edev->int_info);
1652         if (rc)
1653                 return rc;
1654
1655         if (edev->int_info.msix_cnt) {
1656                 rc = qede_req_msix_irqs(edev);
1657                 if (rc)
1658                         return rc;
1659                 edev->ndev->irq = edev->int_info.msix[0].vector;
1660         } else {
1661                 const struct qed_common_ops *ops;
1662
1663                 /* qed should learn receive the RSS ids and callbacks */
1664                 ops = edev->ops->common;
1665                 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++)
1666                         ops->simd_handler_config(edev->cdev,
1667                                                  &edev->fp_array[i], i,
1668                                                  qede_simd_fp_handler);
1669                 edev->int_info.used_cnt = QEDE_QUEUE_CNT(edev);
1670         }
1671         return 0;
1672 }
1673
1674 static int qede_drain_txq(struct qede_dev *edev,
1675                           struct qede_tx_queue *txq, bool allow_drain)
1676 {
1677         int rc, cnt = 1000;
1678
1679         while (txq->sw_tx_cons != txq->sw_tx_prod) {
1680                 if (!cnt) {
1681                         if (allow_drain) {
1682                                 DP_NOTICE(edev,
1683                                           "Tx queue[%d] is stuck, requesting MCP to drain\n",
1684                                           txq->index);
1685                                 rc = edev->ops->common->drain(edev->cdev);
1686                                 if (rc)
1687                                         return rc;
1688                                 return qede_drain_txq(edev, txq, false);
1689                         }
1690                         DP_NOTICE(edev,
1691                                   "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
1692                                   txq->index, txq->sw_tx_prod,
1693                                   txq->sw_tx_cons);
1694                         return -ENODEV;
1695                 }
1696                 cnt--;
1697                 usleep_range(1000, 2000);
1698                 barrier();
1699         }
1700
1701         /* FW finished processing, wait for HW to transmit all tx packets */
1702         usleep_range(1000, 2000);
1703
1704         return 0;
1705 }
1706
1707 static int qede_stop_txq(struct qede_dev *edev,
1708                          struct qede_tx_queue *txq, int rss_id)
1709 {
1710         return edev->ops->q_tx_stop(edev->cdev, rss_id, txq->handle);
1711 }
1712
1713 static int qede_stop_queues(struct qede_dev *edev)
1714 {
1715         struct qed_update_vport_params *vport_update_params;
1716         struct qed_dev *cdev = edev->cdev;
1717         struct qede_fastpath *fp;
1718         int rc, i;
1719
1720         /* Disable the vport */
1721         vport_update_params = vzalloc(sizeof(*vport_update_params));
1722         if (!vport_update_params)
1723                 return -ENOMEM;
1724
1725         vport_update_params->vport_id = 0;
1726         vport_update_params->update_vport_active_flg = 1;
1727         vport_update_params->vport_active_flg = 0;
1728         vport_update_params->update_rss_flg = 0;
1729
1730         rc = edev->ops->vport_update(cdev, vport_update_params);
1731         vfree(vport_update_params);
1732
1733         if (rc) {
1734                 DP_ERR(edev, "Failed to update vport\n");
1735                 return rc;
1736         }
1737
1738         /* Flush Tx queues. If needed, request drain from MCP */
1739         for_each_queue(i) {
1740                 fp = &edev->fp_array[i];
1741
1742                 if (fp->type & QEDE_FASTPATH_TX) {
1743                         rc = qede_drain_txq(edev, fp->txq, true);
1744                         if (rc)
1745                                 return rc;
1746                 }
1747
1748                 if (fp->type & QEDE_FASTPATH_XDP) {
1749                         rc = qede_drain_txq(edev, fp->xdp_tx, true);
1750                         if (rc)
1751                                 return rc;
1752                 }
1753         }
1754
1755         /* Stop all Queues in reverse order */
1756         for (i = QEDE_QUEUE_CNT(edev) - 1; i >= 0; i--) {
1757                 fp = &edev->fp_array[i];
1758
1759                 /* Stop the Tx Queue(s) */
1760                 if (fp->type & QEDE_FASTPATH_TX) {
1761                         rc = qede_stop_txq(edev, fp->txq, i);
1762                         if (rc)
1763                                 return rc;
1764                 }
1765
1766                 /* Stop the Rx Queue */
1767                 if (fp->type & QEDE_FASTPATH_RX) {
1768                         rc = edev->ops->q_rx_stop(cdev, i, fp->rxq->handle);
1769                         if (rc) {
1770                                 DP_ERR(edev, "Failed to stop RXQ #%d\n", i);
1771                                 return rc;
1772                         }
1773                 }
1774
1775                 /* Stop the XDP forwarding queue */
1776                 if (fp->type & QEDE_FASTPATH_XDP) {
1777                         rc = qede_stop_txq(edev, fp->xdp_tx, i);
1778                         if (rc)
1779                                 return rc;
1780
1781                         bpf_prog_put(fp->rxq->xdp_prog);
1782                 }
1783         }
1784
1785         /* Stop the vport */
1786         rc = edev->ops->vport_stop(cdev, 0);
1787         if (rc)
1788                 DP_ERR(edev, "Failed to stop VPORT\n");
1789
1790         return rc;
1791 }
1792
1793 static int qede_start_txq(struct qede_dev *edev,
1794                           struct qede_fastpath *fp,
1795                           struct qede_tx_queue *txq, u8 rss_id, u16 sb_idx)
1796 {
1797         dma_addr_t phys_table = qed_chain_get_pbl_phys(&txq->tx_pbl);
1798         u32 page_cnt = qed_chain_get_page_cnt(&txq->tx_pbl);
1799         struct qed_queue_start_common_params params;
1800         struct qed_txq_start_ret_params ret_params;
1801         int rc;
1802
1803         memset(&params, 0, sizeof(params));
1804         memset(&ret_params, 0, sizeof(ret_params));
1805
1806         /* Let the XDP queue share the queue-zone with one of the regular txq.
1807          * We don't really care about its coalescing.
1808          */
1809         if (txq->is_xdp)
1810                 params.queue_id = QEDE_TXQ_XDP_TO_IDX(edev, txq);
1811         else
1812                 params.queue_id = txq->index;
1813
1814         params.p_sb = fp->sb_info;
1815         params.sb_idx = sb_idx;
1816
1817         rc = edev->ops->q_tx_start(edev->cdev, rss_id, &params, phys_table,
1818                                    page_cnt, &ret_params);
1819         if (rc) {
1820                 DP_ERR(edev, "Start TXQ #%d failed %d\n", txq->index, rc);
1821                 return rc;
1822         }
1823
1824         txq->doorbell_addr = ret_params.p_doorbell;
1825         txq->handle = ret_params.p_handle;
1826
1827         /* Determine the FW consumer address associated */
1828         txq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[sb_idx];
1829
1830         /* Prepare the doorbell parameters */
1831         SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_DEST, DB_DEST_XCM);
1832         SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD, DB_AGG_CMD_SET);
1833         SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_VAL_SEL,
1834                   DQ_XCM_ETH_TX_BD_PROD_CMD);
1835         txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD;
1836
1837         return rc;
1838 }
1839
1840 static int qede_start_queues(struct qede_dev *edev, bool clear_stats)
1841 {
1842         int vlan_removal_en = 1;
1843         struct qed_dev *cdev = edev->cdev;
1844         struct qed_dev_info *qed_info = &edev->dev_info.common;
1845         struct qed_update_vport_params *vport_update_params;
1846         struct qed_queue_start_common_params q_params;
1847         struct qed_start_vport_params start = {0};
1848         int rc, i;
1849
1850         if (!edev->num_queues) {
1851                 DP_ERR(edev,
1852                        "Cannot update V-VPORT as active as there are no Rx queues\n");
1853                 return -EINVAL;
1854         }
1855
1856         vport_update_params = vzalloc(sizeof(*vport_update_params));
1857         if (!vport_update_params)
1858                 return -ENOMEM;
1859
1860         start.handle_ptp_pkts = !!(edev->ptp);
1861         start.gro_enable = !edev->gro_disable;
1862         start.mtu = edev->ndev->mtu;
1863         start.vport_id = 0;
1864         start.drop_ttl0 = true;
1865         start.remove_inner_vlan = vlan_removal_en;
1866         start.clear_stats = clear_stats;
1867
1868         rc = edev->ops->vport_start(cdev, &start);
1869
1870         if (rc) {
1871                 DP_ERR(edev, "Start V-PORT failed %d\n", rc);
1872                 goto out;
1873         }
1874
1875         DP_VERBOSE(edev, NETIF_MSG_IFUP,
1876                    "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
1877                    start.vport_id, edev->ndev->mtu + 0xe, vlan_removal_en);
1878
1879         for_each_queue(i) {
1880                 struct qede_fastpath *fp = &edev->fp_array[i];
1881                 dma_addr_t p_phys_table;
1882                 u32 page_cnt;
1883
1884                 if (fp->type & QEDE_FASTPATH_RX) {
1885                         struct qed_rxq_start_ret_params ret_params;
1886                         struct qede_rx_queue *rxq = fp->rxq;
1887                         __le16 *val;
1888
1889                         memset(&ret_params, 0, sizeof(ret_params));
1890                         memset(&q_params, 0, sizeof(q_params));
1891                         q_params.queue_id = rxq->rxq_id;
1892                         q_params.vport_id = 0;
1893                         q_params.p_sb = fp->sb_info;
1894                         q_params.sb_idx = RX_PI;
1895
1896                         p_phys_table =
1897                             qed_chain_get_pbl_phys(&rxq->rx_comp_ring);
1898                         page_cnt = qed_chain_get_page_cnt(&rxq->rx_comp_ring);
1899
1900                         rc = edev->ops->q_rx_start(cdev, i, &q_params,
1901                                                    rxq->rx_buf_size,
1902                                                    rxq->rx_bd_ring.p_phys_addr,
1903                                                    p_phys_table,
1904                                                    page_cnt, &ret_params);
1905                         if (rc) {
1906                                 DP_ERR(edev, "Start RXQ #%d failed %d\n", i,
1907                                        rc);
1908                                 goto out;
1909                         }
1910
1911                         /* Use the return parameters */
1912                         rxq->hw_rxq_prod_addr = ret_params.p_prod;
1913                         rxq->handle = ret_params.p_handle;
1914
1915                         val = &fp->sb_info->sb_virt->pi_array[RX_PI];
1916                         rxq->hw_cons_ptr = val;
1917
1918                         qede_update_rx_prod(edev, rxq);
1919                 }
1920
1921                 if (fp->type & QEDE_FASTPATH_XDP) {
1922                         rc = qede_start_txq(edev, fp, fp->xdp_tx, i, XDP_PI);
1923                         if (rc)
1924                                 goto out;
1925
1926                         fp->rxq->xdp_prog = bpf_prog_add(edev->xdp_prog, 1);
1927                         if (IS_ERR(fp->rxq->xdp_prog)) {
1928                                 rc = PTR_ERR(fp->rxq->xdp_prog);
1929                                 fp->rxq->xdp_prog = NULL;
1930                                 goto out;
1931                         }
1932                 }
1933
1934                 if (fp->type & QEDE_FASTPATH_TX) {
1935                         rc = qede_start_txq(edev, fp, fp->txq, i, TX_PI(0));
1936                         if (rc)
1937                                 goto out;
1938                 }
1939         }
1940
1941         /* Prepare and send the vport enable */
1942         vport_update_params->vport_id = start.vport_id;
1943         vport_update_params->update_vport_active_flg = 1;
1944         vport_update_params->vport_active_flg = 1;
1945
1946         if ((qed_info->mf_mode == QED_MF_NPAR || pci_num_vf(edev->pdev)) &&
1947             qed_info->tx_switching) {
1948                 vport_update_params->update_tx_switching_flg = 1;
1949                 vport_update_params->tx_switching_flg = 1;
1950         }
1951
1952         qede_fill_rss_params(edev, &vport_update_params->rss_params,
1953                              &vport_update_params->update_rss_flg);
1954
1955         rc = edev->ops->vport_update(cdev, vport_update_params);
1956         if (rc)
1957                 DP_ERR(edev, "Update V-PORT failed %d\n", rc);
1958
1959 out:
1960         vfree(vport_update_params);
1961         return rc;
1962 }
1963
1964 enum qede_unload_mode {
1965         QEDE_UNLOAD_NORMAL,
1966 };
1967
1968 static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode,
1969                         bool is_locked)
1970 {
1971         struct qed_link_params link_params;
1972         int rc;
1973
1974         DP_INFO(edev, "Starting qede unload\n");
1975
1976         if (!is_locked)
1977                 __qede_lock(edev);
1978
1979         edev->state = QEDE_STATE_CLOSED;
1980
1981         qede_rdma_dev_event_close(edev);
1982
1983         /* Close OS Tx */
1984         netif_tx_disable(edev->ndev);
1985         netif_carrier_off(edev->ndev);
1986
1987         /* Reset the link */
1988         memset(&link_params, 0, sizeof(link_params));
1989         link_params.link_up = false;
1990         edev->ops->common->set_link(edev->cdev, &link_params);
1991         rc = qede_stop_queues(edev);
1992         if (rc) {
1993                 qede_sync_free_irqs(edev);
1994                 goto out;
1995         }
1996
1997         DP_INFO(edev, "Stopped Queues\n");
1998
1999         qede_vlan_mark_nonconfigured(edev);
2000         edev->ops->fastpath_stop(edev->cdev);
2001
2002         if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
2003                 qede_poll_for_freeing_arfs_filters(edev);
2004                 qede_free_arfs(edev);
2005         }
2006
2007         /* Release the interrupts */
2008         qede_sync_free_irqs(edev);
2009         edev->ops->common->set_fp_int(edev->cdev, 0);
2010
2011         qede_napi_disable_remove(edev);
2012
2013         qede_free_mem_load(edev);
2014         qede_free_fp_array(edev);
2015
2016 out:
2017         if (!is_locked)
2018                 __qede_unlock(edev);
2019         DP_INFO(edev, "Ending qede unload\n");
2020 }
2021
2022 enum qede_load_mode {
2023         QEDE_LOAD_NORMAL,
2024         QEDE_LOAD_RELOAD,
2025 };
2026
2027 static int qede_load(struct qede_dev *edev, enum qede_load_mode mode,
2028                      bool is_locked)
2029 {
2030         struct qed_link_params link_params;
2031         int rc;
2032
2033         DP_INFO(edev, "Starting qede load\n");
2034
2035         if (!is_locked)
2036                 __qede_lock(edev);
2037
2038         rc = qede_set_num_queues(edev);
2039         if (rc)
2040                 goto out;
2041
2042         rc = qede_alloc_fp_array(edev);
2043         if (rc)
2044                 goto out;
2045
2046         qede_init_fp(edev);
2047
2048         rc = qede_alloc_mem_load(edev);
2049         if (rc)
2050                 goto err1;
2051         DP_INFO(edev, "Allocated %d Rx, %d Tx queues\n",
2052                 QEDE_RSS_COUNT(edev), QEDE_TSS_COUNT(edev));
2053
2054         rc = qede_set_real_num_queues(edev);
2055         if (rc)
2056                 goto err2;
2057
2058         if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
2059                 rc = qede_alloc_arfs(edev);
2060                 if (rc)
2061                         DP_NOTICE(edev, "aRFS memory allocation failed\n");
2062         }
2063
2064         qede_napi_add_enable(edev);
2065         DP_INFO(edev, "Napi added and enabled\n");
2066
2067         rc = qede_setup_irqs(edev);
2068         if (rc)
2069                 goto err3;
2070         DP_INFO(edev, "Setup IRQs succeeded\n");
2071
2072         rc = qede_start_queues(edev, mode != QEDE_LOAD_RELOAD);
2073         if (rc)
2074                 goto err4;
2075         DP_INFO(edev, "Start VPORT, RXQ and TXQ succeeded\n");
2076
2077         /* Program un-configured VLANs */
2078         qede_configure_vlan_filters(edev);
2079
2080         /* Ask for link-up using current configuration */
2081         memset(&link_params, 0, sizeof(link_params));
2082         link_params.link_up = true;
2083         edev->ops->common->set_link(edev->cdev, &link_params);
2084
2085         edev->state = QEDE_STATE_OPEN;
2086
2087         DP_INFO(edev, "Ending successfully qede load\n");
2088
2089         goto out;
2090 err4:
2091         qede_sync_free_irqs(edev);
2092 err3:
2093         qede_napi_disable_remove(edev);
2094 err2:
2095         qede_free_mem_load(edev);
2096 err1:
2097         edev->ops->common->set_fp_int(edev->cdev, 0);
2098         qede_free_fp_array(edev);
2099         edev->num_queues = 0;
2100         edev->fp_num_tx = 0;
2101         edev->fp_num_rx = 0;
2102 out:
2103         if (!is_locked)
2104                 __qede_unlock(edev);
2105
2106         return rc;
2107 }
2108
2109 /* 'func' should be able to run between unload and reload assuming interface
2110  * is actually running, or afterwards in case it's currently DOWN.
2111  */
2112 void qede_reload(struct qede_dev *edev,
2113                  struct qede_reload_args *args, bool is_locked)
2114 {
2115         if (!is_locked)
2116                 __qede_lock(edev);
2117
2118         /* Since qede_lock is held, internal state wouldn't change even
2119          * if netdev state would start transitioning. Check whether current
2120          * internal configuration indicates device is up, then reload.
2121          */
2122         if (edev->state == QEDE_STATE_OPEN) {
2123                 qede_unload(edev, QEDE_UNLOAD_NORMAL, true);
2124                 if (args)
2125                         args->func(edev, args);
2126                 qede_load(edev, QEDE_LOAD_RELOAD, true);
2127
2128                 /* Since no one is going to do it for us, re-configure */
2129                 qede_config_rx_mode(edev->ndev);
2130         } else if (args) {
2131                 args->func(edev, args);
2132         }
2133
2134         if (!is_locked)
2135                 __qede_unlock(edev);
2136 }
2137
2138 /* called with rtnl_lock */
2139 static int qede_open(struct net_device *ndev)
2140 {
2141         struct qede_dev *edev = netdev_priv(ndev);
2142         int rc;
2143
2144         netif_carrier_off(ndev);
2145
2146         edev->ops->common->set_power_state(edev->cdev, PCI_D0);
2147
2148         rc = qede_load(edev, QEDE_LOAD_NORMAL, false);
2149         if (rc)
2150                 return rc;
2151
2152         udp_tunnel_get_rx_info(ndev);
2153
2154         edev->ops->common->update_drv_state(edev->cdev, true);
2155
2156         return 0;
2157 }
2158
2159 static int qede_close(struct net_device *ndev)
2160 {
2161         struct qede_dev *edev = netdev_priv(ndev);
2162
2163         qede_unload(edev, QEDE_UNLOAD_NORMAL, false);
2164
2165         edev->ops->common->update_drv_state(edev->cdev, false);
2166
2167         return 0;
2168 }
2169
2170 static void qede_link_update(void *dev, struct qed_link_output *link)
2171 {
2172         struct qede_dev *edev = dev;
2173
2174         if (!netif_running(edev->ndev)) {
2175                 DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not running\n");
2176                 return;
2177         }
2178
2179         if (link->link_up) {
2180                 if (!netif_carrier_ok(edev->ndev)) {
2181                         DP_NOTICE(edev, "Link is up\n");
2182                         netif_tx_start_all_queues(edev->ndev);
2183                         netif_carrier_on(edev->ndev);
2184                         qede_rdma_dev_event_open(edev);
2185                 }
2186         } else {
2187                 if (netif_carrier_ok(edev->ndev)) {
2188                         DP_NOTICE(edev, "Link is down\n");
2189                         netif_tx_disable(edev->ndev);
2190                         netif_carrier_off(edev->ndev);
2191                         qede_rdma_dev_event_close(edev);
2192                 }
2193         }
2194 }