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 static void qede_get_eth_tlv_data(void *edev, void *data);
 137 static void qede_get_generic_tlv_data(void *edev,
 138                                       struct qed_generic_tlvs *data);
 139
 140 /* The qede lock is used to protect driver state change and driver flows that
 141  * are not reentrant.
 142  */
 143 void __qede_lock(struct qede_dev *edev)
 144 {
 145         mutex_lock(&edev->qede_lock);
 146 }
 147
 148 void __qede_unlock(struct qede_dev *edev)
 149 {
 150         mutex_unlock(&edev->qede_lock);
 151 }
 152
 153 #ifdef CONFIG_QED_SRIOV
 154 static int qede_set_vf_vlan(struct net_device *ndev, int vf, u16 vlan, u8 qos,
 155                             __be16 vlan_proto)
 156 {
 157         struct qede_dev *edev = netdev_priv(ndev);
 158
 159         if (vlan > 4095) {
 160                 DP_NOTICE(edev, "Illegal vlan value %d\n", vlan);
 161                 return -EINVAL;
 162         }
 163
 164         if (vlan_proto != htons(ETH_P_8021Q))
 165                 return -EPROTONOSUPPORT;
 166
 167         DP_VERBOSE(edev, QED_MSG_IOV, "Setting Vlan 0x%04x to VF [%d]\n",
 168                    vlan, vf);
 169
 170         return edev->ops->iov->set_vlan(edev->cdev, vlan, vf);
 171 }
 172
 173 static int qede_set_vf_mac(struct net_device *ndev, int vfidx, u8 *mac)
 174 {
 175         struct qede_dev *edev = netdev_priv(ndev);
 176
 177         DP_VERBOSE(edev, QED_MSG_IOV,
 178                    "Setting MAC %02x:%02x:%02x:%02x:%02x:%02x to VF [%d]\n",
 179                    mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], vfidx);
 180
 181         if (!is_valid_ether_addr(mac)) {
 182                 DP_VERBOSE(edev, QED_MSG_IOV, "MAC address isn't valid\n");
 183                 return -EINVAL;
 184         }
 185
 186         return edev->ops->iov->set_mac(edev->cdev, mac, vfidx);
 187 }
 188
 189 static int qede_sriov_configure(struct pci_dev *pdev, int num_vfs_param)
 190 {
 191         struct qede_dev *edev = netdev_priv(pci_get_drvdata(pdev));
 192         struct qed_dev_info *qed_info = &edev->dev_info.common;
 193         struct qed_update_vport_params *vport_params;
 194         int rc;
 195
 196         vport_params = vzalloc(sizeof(*vport_params));
 197         if (!vport_params)
 198                 return -ENOMEM;
 199         DP_VERBOSE(edev, QED_MSG_IOV, "Requested %d VFs\n", num_vfs_param);
 200
 201         rc = edev->ops->iov->configure(edev->cdev, num_vfs_param);
 202
 203         /* Enable/Disable Tx switching for PF */
 204         if ((rc == num_vfs_param) && netif_running(edev->ndev) &&
 205             !qed_info->b_inter_pf_switch && qed_info->tx_switching) {
 206                 vport_params->vport_id = 0;
 207                 vport_params->update_tx_switching_flg = 1;
 208                 vport_params->tx_switching_flg = num_vfs_param ? 1 : 0;
 209                 edev->ops->vport_update(edev->cdev, vport_params);
 210         }
 211
 212         vfree(vport_params);
 213         return rc;
 214 }
 215 #endif
 216
 217 static struct pci_driver qede_pci_driver = {
 218         .name = "qede",
 219         .id_table = qede_pci_tbl,
 220         .probe = qede_probe,
 221         .remove = qede_remove,
 222         .shutdown = qede_shutdown,
 223 #ifdef CONFIG_QED_SRIOV
 224         .sriov_configure = qede_sriov_configure,
 225 #endif
 226 };
 227
 228 static struct qed_eth_cb_ops qede_ll_ops = {
 229         {
 230 #ifdef CONFIG_RFS_ACCEL
 231                 .arfs_filter_op = qede_arfs_filter_op,
 232 #endif
 233                 .link_update = qede_link_update,
 234                 .get_generic_tlv_data = qede_get_generic_tlv_data,
 235                 .get_protocol_tlv_data = qede_get_eth_tlv_data,
 236         },
 237         .force_mac = qede_force_mac,
 238         .ports_update = qede_udp_ports_update,
 239 };
 240
 241 static int qede_netdev_event(struct notifier_block *this, unsigned long event,
 242                              void *ptr)
 243 {
 244         struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
 245         struct ethtool_drvinfo drvinfo;
 246         struct qede_dev *edev;
 247
 248         if (event != NETDEV_CHANGENAME && event != NETDEV_CHANGEADDR)
 249                 goto done;
 250
 251         /* Check whether this is a qede device */
 252         if (!ndev || !ndev->ethtool_ops || !ndev->ethtool_ops->get_drvinfo)
 253                 goto done;
 254
 255         memset(&drvinfo, 0, sizeof(drvinfo));
 256         ndev->ethtool_ops->get_drvinfo(ndev, &drvinfo);
 257         if (strcmp(drvinfo.driver, "qede"))
 258                 goto done;
 259         edev = netdev_priv(ndev);
 260
 261         switch (event) {
 262         case NETDEV_CHANGENAME:
 263                 /* Notify qed of the name change */
 264                 if (!edev->ops || !edev->ops->common)
 265                         goto done;
 266                 edev->ops->common->set_name(edev->cdev, edev->ndev->name);
 267                 break;
 268         case NETDEV_CHANGEADDR:
 269                 edev = netdev_priv(ndev);
 270                 qede_rdma_event_changeaddr(edev);
 271                 break;
 272         }
 273
 274 done:
 275         return NOTIFY_DONE;
 276 }
 277
 278 static struct notifier_block qede_netdev_notifier = {
 279         .notifier_call = qede_netdev_event,
 280 };
 281
 282 static
 283 int __init qede_init(void)
 284 {
 285         int ret;
 286
 287         pr_info("qede_init: %s\n", version);
 288
 289         qed_ops = qed_get_eth_ops();
 290         if (!qed_ops) {
 291                 pr_notice("Failed to get qed ethtool operations\n");
 292                 return -EINVAL;
 293         }
 294
 295         /* Must register notifier before pci ops, since we might miss
 296          * interface rename after pci probe and netdev registration.
 297          */
 298         ret = register_netdevice_notifier(&qede_netdev_notifier);
 299         if (ret) {
 300                 pr_notice("Failed to register netdevice_notifier\n");
 301                 qed_put_eth_ops();
 302                 return -EINVAL;
 303         }
 304
 305         ret = pci_register_driver(&qede_pci_driver);
 306         if (ret) {
 307                 pr_notice("Failed to register driver\n");
 308                 unregister_netdevice_notifier(&qede_netdev_notifier);
 309                 qed_put_eth_ops();
 310                 return -EINVAL;
 311         }
 312
 313         return 0;
 314 }
 315
 316 static void __exit qede_cleanup(void)
 317 {
 318         if (debug & QED_LOG_INFO_MASK)
 319                 pr_info("qede_cleanup called\n");
 320
 321         unregister_netdevice_notifier(&qede_netdev_notifier);
 322         pci_unregister_driver(&qede_pci_driver);
 323         qed_put_eth_ops();
 324 }
 325
 326 module_init(qede_init);
 327 module_exit(qede_cleanup);
 328
 329 static int qede_open(struct net_device *ndev);
 330 static int qede_close(struct net_device *ndev);
 331
 332 void qede_fill_by_demand_stats(struct qede_dev *edev)
 333 {
 334         struct qede_stats_common *p_common = &edev->stats.common;
 335         struct qed_eth_stats stats;
 336
 337         edev->ops->get_vport_stats(edev->cdev, &stats);
 338
 339         p_common->no_buff_discards = stats.common.no_buff_discards;
 340         p_common->packet_too_big_discard = stats.common.packet_too_big_discard;
 341         p_common->ttl0_discard = stats.common.ttl0_discard;
 342         p_common->rx_ucast_bytes = stats.common.rx_ucast_bytes;
 343         p_common->rx_mcast_bytes = stats.common.rx_mcast_bytes;
 344         p_common->rx_bcast_bytes = stats.common.rx_bcast_bytes;
 345         p_common->rx_ucast_pkts = stats.common.rx_ucast_pkts;
 346         p_common->rx_mcast_pkts = stats.common.rx_mcast_pkts;
 347         p_common->rx_bcast_pkts = stats.common.rx_bcast_pkts;
 348         p_common->mftag_filter_discards = stats.common.mftag_filter_discards;
 349         p_common->mac_filter_discards = stats.common.mac_filter_discards;
 350         p_common->gft_filter_drop = stats.common.gft_filter_drop;
 351
 352         p_common->tx_ucast_bytes = stats.common.tx_ucast_bytes;
 353         p_common->tx_mcast_bytes = stats.common.tx_mcast_bytes;
 354         p_common->tx_bcast_bytes = stats.common.tx_bcast_bytes;
 355         p_common->tx_ucast_pkts = stats.common.tx_ucast_pkts;
 356         p_common->tx_mcast_pkts = stats.common.tx_mcast_pkts;
 357         p_common->tx_bcast_pkts = stats.common.tx_bcast_pkts;
 358         p_common->tx_err_drop_pkts = stats.common.tx_err_drop_pkts;
 359         p_common->coalesced_pkts = stats.common.tpa_coalesced_pkts;
 360         p_common->coalesced_events = stats.common.tpa_coalesced_events;
 361         p_common->coalesced_aborts_num = stats.common.tpa_aborts_num;
 362         p_common->non_coalesced_pkts = stats.common.tpa_not_coalesced_pkts;
 363         p_common->coalesced_bytes = stats.common.tpa_coalesced_bytes;
 364
 365         p_common->rx_64_byte_packets = stats.common.rx_64_byte_packets;
 366         p_common->rx_65_to_127_byte_packets =
 367             stats.common.rx_65_to_127_byte_packets;
 368         p_common->rx_128_to_255_byte_packets =
 369             stats.common.rx_128_to_255_byte_packets;
 370         p_common->rx_256_to_511_byte_packets =
 371             stats.common.rx_256_to_511_byte_packets;
 372         p_common->rx_512_to_1023_byte_packets =
 373             stats.common.rx_512_to_1023_byte_packets;
 374         p_common->rx_1024_to_1518_byte_packets =
 375             stats.common.rx_1024_to_1518_byte_packets;
 376         p_common->rx_crc_errors = stats.common.rx_crc_errors;
 377         p_common->rx_mac_crtl_frames = stats.common.rx_mac_crtl_frames;
 378         p_common->rx_pause_frames = stats.common.rx_pause_frames;
 379         p_common->rx_pfc_frames = stats.common.rx_pfc_frames;
 380         p_common->rx_align_errors = stats.common.rx_align_errors;
 381         p_common->rx_carrier_errors = stats.common.rx_carrier_errors;
 382         p_common->rx_oversize_packets = stats.common.rx_oversize_packets;
 383         p_common->rx_jabbers = stats.common.rx_jabbers;
 384         p_common->rx_undersize_packets = stats.common.rx_undersize_packets;
 385         p_common->rx_fragments = stats.common.rx_fragments;
 386         p_common->tx_64_byte_packets = stats.common.tx_64_byte_packets;
 387         p_common->tx_65_to_127_byte_packets =
 388             stats.common.tx_65_to_127_byte_packets;
 389         p_common->tx_128_to_255_byte_packets =
 390             stats.common.tx_128_to_255_byte_packets;
 391         p_common->tx_256_to_511_byte_packets =
 392             stats.common.tx_256_to_511_byte_packets;
 393         p_common->tx_512_to_1023_byte_packets =
 394             stats.common.tx_512_to_1023_byte_packets;
 395         p_common->tx_1024_to_1518_byte_packets =
 396             stats.common.tx_1024_to_1518_byte_packets;
 397         p_common->tx_pause_frames = stats.common.tx_pause_frames;
 398         p_common->tx_pfc_frames = stats.common.tx_pfc_frames;
 399         p_common->brb_truncates = stats.common.brb_truncates;
 400         p_common->brb_discards = stats.common.brb_discards;
 401         p_common->tx_mac_ctrl_frames = stats.common.tx_mac_ctrl_frames;
 402         p_common->link_change_count = stats.common.link_change_count;
 403
 404         if (QEDE_IS_BB(edev)) {
 405                 struct qede_stats_bb *p_bb = &edev->stats.bb;
 406
 407                 p_bb->rx_1519_to_1522_byte_packets =
 408                     stats.bb.rx_1519_to_1522_byte_packets;
 409                 p_bb->rx_1519_to_2047_byte_packets =
 410                     stats.bb.rx_1519_to_2047_byte_packets;
 411                 p_bb->rx_2048_to_4095_byte_packets =
 412                     stats.bb.rx_2048_to_4095_byte_packets;
 413                 p_bb->rx_4096_to_9216_byte_packets =
 414                     stats.bb.rx_4096_to_9216_byte_packets;
 415                 p_bb->rx_9217_to_16383_byte_packets =
 416                     stats.bb.rx_9217_to_16383_byte_packets;
 417                 p_bb->tx_1519_to_2047_byte_packets =
 418                     stats.bb.tx_1519_to_2047_byte_packets;
 419                 p_bb->tx_2048_to_4095_byte_packets =
 420                     stats.bb.tx_2048_to_4095_byte_packets;
 421                 p_bb->tx_4096_to_9216_byte_packets =
 422                     stats.bb.tx_4096_to_9216_byte_packets;
 423                 p_bb->tx_9217_to_16383_byte_packets =
 424                     stats.bb.tx_9217_to_16383_byte_packets;
 425                 p_bb->tx_lpi_entry_count = stats.bb.tx_lpi_entry_count;
 426                 p_bb->tx_total_collisions = stats.bb.tx_total_collisions;
 427         } else {
 428                 struct qede_stats_ah *p_ah = &edev->stats.ah;
 429
 430                 p_ah->rx_1519_to_max_byte_packets =
 431                     stats.ah.rx_1519_to_max_byte_packets;
 432                 p_ah->tx_1519_to_max_byte_packets =
 433                     stats.ah.tx_1519_to_max_byte_packets;
 434         }
 435 }
 436
 437 static void qede_get_stats64(struct net_device *dev,
 438                              struct rtnl_link_stats64 *stats)
 439 {
 440         struct qede_dev *edev = netdev_priv(dev);
 441         struct qede_stats_common *p_common;
 442
 443         qede_fill_by_demand_stats(edev);
 444         p_common = &edev->stats.common;
 445
 446         stats->rx_packets = p_common->rx_ucast_pkts + p_common->rx_mcast_pkts +
 447                             p_common->rx_bcast_pkts;
 448         stats->tx_packets = p_common->tx_ucast_pkts + p_common->tx_mcast_pkts +
 449                             p_common->tx_bcast_pkts;
 450
 451         stats->rx_bytes = p_common->rx_ucast_bytes + p_common->rx_mcast_bytes +
 452                           p_common->rx_bcast_bytes;
 453         stats->tx_bytes = p_common->tx_ucast_bytes + p_common->tx_mcast_bytes +
 454                           p_common->tx_bcast_bytes;
 455
 456         stats->tx_errors = p_common->tx_err_drop_pkts;
 457         stats->multicast = p_common->rx_mcast_pkts + p_common->rx_bcast_pkts;
 458
 459         stats->rx_fifo_errors = p_common->no_buff_discards;
 460
 461         if (QEDE_IS_BB(edev))
 462                 stats->collisions = edev->stats.bb.tx_total_collisions;
 463         stats->rx_crc_errors = p_common->rx_crc_errors;
 464         stats->rx_frame_errors = p_common->rx_align_errors;
 465 }
 466
 467 #ifdef CONFIG_QED_SRIOV
 468 static int qede_get_vf_config(struct net_device *dev, int vfidx,
 469                               struct ifla_vf_info *ivi)
 470 {
 471         struct qede_dev *edev = netdev_priv(dev);
 472
 473         if (!edev->ops)
 474                 return -EINVAL;
 475
 476         return edev->ops->iov->get_config(edev->cdev, vfidx, ivi);
 477 }
 478
 479 static int qede_set_vf_rate(struct net_device *dev, int vfidx,
 480                             int min_tx_rate, int max_tx_rate)
 481 {
 482         struct qede_dev *edev = netdev_priv(dev);
 483
 484         return edev->ops->iov->set_rate(edev->cdev, vfidx, min_tx_rate,
 485                                         max_tx_rate);
 486 }
 487
 488 static int qede_set_vf_spoofchk(struct net_device *dev, int vfidx, bool val)
 489 {
 490         struct qede_dev *edev = netdev_priv(dev);
 491
 492         if (!edev->ops)
 493                 return -EINVAL;
 494
 495         return edev->ops->iov->set_spoof(edev->cdev, vfidx, val);
 496 }
 497
 498 static int qede_set_vf_link_state(struct net_device *dev, int vfidx,
 499                                   int link_state)
 500 {
 501         struct qede_dev *edev = netdev_priv(dev);
 502
 503         if (!edev->ops)
 504                 return -EINVAL;
 505
 506         return edev->ops->iov->set_link_state(edev->cdev, vfidx, link_state);
 507 }
 508
 509 static int qede_set_vf_trust(struct net_device *dev, int vfidx, bool setting)
 510 {
 511         struct qede_dev *edev = netdev_priv(dev);
 512
 513         if (!edev->ops)
 514                 return -EINVAL;
 515
 516         return edev->ops->iov->set_trust(edev->cdev, vfidx, setting);
 517 }
 518 #endif
 519
 520 static int qede_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 521 {
 522         struct qede_dev *edev = netdev_priv(dev);
 523
 524         if (!netif_running(dev))
 525                 return -EAGAIN;
 526
 527         switch (cmd) {
 528         case SIOCSHWTSTAMP:
 529                 return qede_ptp_hw_ts(edev, ifr);
 530         default:
 531                 DP_VERBOSE(edev, QED_MSG_DEBUG,
 532                            "default IOCTL cmd 0x%x\n", cmd);
 533                 return -EOPNOTSUPP;
 534         }
 535
 536         return 0;
 537 }
 538
 539 static int qede_setup_tc(struct net_device *ndev, u8 num_tc)
 540 {
 541         struct qede_dev *edev = netdev_priv(ndev);
 542         int cos, count, offset;
 543
 544         if (num_tc > edev->dev_info.num_tc)
 545                 return -EINVAL;
 546
 547         netdev_reset_tc(ndev);
 548         netdev_set_num_tc(ndev, num_tc);
 549
 550         for_each_cos_in_txq(edev, cos) {
 551                 count = QEDE_TSS_COUNT(edev);
 552                 offset = cos * QEDE_TSS_COUNT(edev);
 553                 netdev_set_tc_queue(ndev, cos, count, offset);
 554         }
 555
 556         return 0;
 557 }
 558
 559 static int
 560 qede_set_flower(struct qede_dev *edev, struct tc_cls_flower_offload *f,
 561                 __be16 proto)
 562 {
 563         switch (f->command) {
 564         case TC_CLSFLOWER_REPLACE:
 565                 return qede_add_tc_flower_fltr(edev, proto, f);
 566         case TC_CLSFLOWER_DESTROY:
 567                 return qede_delete_flow_filter(edev, f->cookie);
 568         default:
 569                 return -EOPNOTSUPP;
 570         }
 571 }
 572
 573 static int qede_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
 574                                   void *cb_priv)
 575 {
 576         struct tc_cls_flower_offload *f;
 577         struct qede_dev *edev = cb_priv;
 578
 579         if (!tc_cls_can_offload_and_chain0(edev->ndev, type_data))
 580                 return -EOPNOTSUPP;
 581
 582         switch (type) {
 583         case TC_SETUP_CLSFLOWER:
 584                 f = type_data;
 585                 return qede_set_flower(edev, f, f->common.protocol);
 586         default:
 587                 return -EOPNOTSUPP;
 588         }
 589 }
 590
 591 static int qede_setup_tc_block(struct qede_dev *edev,
 592                                struct tc_block_offload *f)
 593 {
 594         if (f->binder_type != TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
 595                 return -EOPNOTSUPP;
 596
 597         switch (f->command) {
 598         case TC_BLOCK_BIND:
 599                 return tcf_block_cb_register(f->block,
 600                                              qede_setup_tc_block_cb,
 601                                              edev, edev, f->extack);
 602         case TC_BLOCK_UNBIND:
 603                 tcf_block_cb_unregister(f->block, qede_setup_tc_block_cb, edev);
 604                 return 0;
 605         default:
 606                 return -EOPNOTSUPP;
 607         }
 608 }
 609
 610 static int
 611 qede_setup_tc_offload(struct net_device *dev, enum tc_setup_type type,
 612                       void *type_data)
 613 {
 614         struct qede_dev *edev = netdev_priv(dev);
 615         struct tc_mqprio_qopt *mqprio;
 616
 617         switch (type) {
 618         case TC_SETUP_BLOCK:
 619                 return qede_setup_tc_block(edev, type_data);
 620         case TC_SETUP_QDISC_MQPRIO:
 621                 mqprio = type_data;
 622
 623                 mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS;
 624                 return qede_setup_tc(dev, mqprio->num_tc);
 625         default:
 626                 return -EOPNOTSUPP;
 627         }
 628 }
 629
 630 static const struct net_device_ops qede_netdev_ops = {
 631         .ndo_open = qede_open,
 632         .ndo_stop = qede_close,
 633         .ndo_start_xmit = qede_start_xmit,
 634         .ndo_set_rx_mode = qede_set_rx_mode,
 635         .ndo_set_mac_address = qede_set_mac_addr,
 636         .ndo_validate_addr = eth_validate_addr,
 637         .ndo_change_mtu = qede_change_mtu,
 638         .ndo_do_ioctl = qede_ioctl,
 639 #ifdef CONFIG_QED_SRIOV
 640         .ndo_set_vf_mac = qede_set_vf_mac,
 641         .ndo_set_vf_vlan = qede_set_vf_vlan,
 642         .ndo_set_vf_trust = qede_set_vf_trust,
 643 #endif
 644         .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
 645         .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
 646         .ndo_fix_features = qede_fix_features,
 647         .ndo_set_features = qede_set_features,
 648         .ndo_get_stats64 = qede_get_stats64,
 649 #ifdef CONFIG_QED_SRIOV
 650         .ndo_set_vf_link_state = qede_set_vf_link_state,
 651         .ndo_set_vf_spoofchk = qede_set_vf_spoofchk,
 652         .ndo_get_vf_config = qede_get_vf_config,
 653         .ndo_set_vf_rate = qede_set_vf_rate,
 654 #endif
 655         .ndo_udp_tunnel_add = qede_udp_tunnel_add,
 656         .ndo_udp_tunnel_del = qede_udp_tunnel_del,
 657         .ndo_features_check = qede_features_check,
 658         .ndo_bpf = qede_xdp,
 659 #ifdef CONFIG_RFS_ACCEL
 660         .ndo_rx_flow_steer = qede_rx_flow_steer,
 661 #endif
 662         .ndo_setup_tc = qede_setup_tc_offload,
 663 };
 664
 665 static const struct net_device_ops qede_netdev_vf_ops = {
 666         .ndo_open = qede_open,
 667         .ndo_stop = qede_close,
 668         .ndo_start_xmit = qede_start_xmit,
 669         .ndo_set_rx_mode = qede_set_rx_mode,
 670         .ndo_set_mac_address = qede_set_mac_addr,
 671         .ndo_validate_addr = eth_validate_addr,
 672         .ndo_change_mtu = qede_change_mtu,
 673         .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
 674         .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
 675         .ndo_fix_features = qede_fix_features,
 676         .ndo_set_features = qede_set_features,
 677         .ndo_get_stats64 = qede_get_stats64,
 678         .ndo_udp_tunnel_add = qede_udp_tunnel_add,
 679         .ndo_udp_tunnel_del = qede_udp_tunnel_del,
 680         .ndo_features_check = qede_features_check,
 681 };
 682
 683 static const struct net_device_ops qede_netdev_vf_xdp_ops = {
 684         .ndo_open = qede_open,
 685         .ndo_stop = qede_close,
 686         .ndo_start_xmit = qede_start_xmit,
 687         .ndo_set_rx_mode = qede_set_rx_mode,
 688         .ndo_set_mac_address = qede_set_mac_addr,
 689         .ndo_validate_addr = eth_validate_addr,
 690         .ndo_change_mtu = qede_change_mtu,
 691         .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
 692         .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
 693         .ndo_fix_features = qede_fix_features,
 694         .ndo_set_features = qede_set_features,
 695         .ndo_get_stats64 = qede_get_stats64,
 696         .ndo_udp_tunnel_add = qede_udp_tunnel_add,
 697         .ndo_udp_tunnel_del = qede_udp_tunnel_del,
 698         .ndo_features_check = qede_features_check,
 699         .ndo_bpf = qede_xdp,
 700 };
 701
 702 /* -------------------------------------------------------------------------
 703  * START OF PROBE / REMOVE
 704  * -------------------------------------------------------------------------
 705  */
 706
 707 static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev,
 708                                             struct pci_dev *pdev,
 709                                             struct qed_dev_eth_info *info,
 710                                             u32 dp_module, u8 dp_level)
 711 {
 712         struct net_device *ndev;
 713         struct qede_dev *edev;
 714
 715         ndev = alloc_etherdev_mqs(sizeof(*edev),
 716                                   info->num_queues * info->num_tc,
 717                                   info->num_queues);
 718         if (!ndev) {
 719                 pr_err("etherdev allocation failed\n");
 720                 return NULL;
 721         }
 722
 723         edev = netdev_priv(ndev);
 724         edev->ndev = ndev;
 725         edev->cdev = cdev;
 726         edev->pdev = pdev;
 727         edev->dp_module = dp_module;
 728         edev->dp_level = dp_level;
 729         edev->ops = qed_ops;
 730         edev->q_num_rx_buffers = NUM_RX_BDS_DEF;
 731         edev->q_num_tx_buffers = NUM_TX_BDS_DEF;
 732
 733         DP_INFO(edev, "Allocated netdev with %d tx queues and %d rx queues\n",
 734                 info->num_queues, info->num_queues);
 735
 736         SET_NETDEV_DEV(ndev, &pdev->dev);
 737
 738         memset(&edev->stats, 0, sizeof(edev->stats));
 739         memcpy(&edev->dev_info, info, sizeof(*info));
 740
 741         /* As ethtool doesn't have the ability to show WoL behavior as
 742          * 'default', if device supports it declare it's enabled.
 743          */
 744         if (edev->dev_info.common.wol_support)
 745                 edev->wol_enabled = true;
 746
 747         INIT_LIST_HEAD(&edev->vlan_list);
 748
 749         return edev;
 750 }
 751
 752 static void qede_init_ndev(struct qede_dev *edev)
 753 {
 754         struct net_device *ndev = edev->ndev;
 755         struct pci_dev *pdev = edev->pdev;
 756         bool udp_tunnel_enable = false;
 757         netdev_features_t hw_features;
 758
 759         pci_set_drvdata(pdev, ndev);
 760
 761         ndev->mem_start = edev->dev_info.common.pci_mem_start;
 762         ndev->base_addr = ndev->mem_start;
 763         ndev->mem_end = edev->dev_info.common.pci_mem_end;
 764         ndev->irq = edev->dev_info.common.pci_irq;
 765
 766         ndev->watchdog_timeo = TX_TIMEOUT;
 767
 768         if (IS_VF(edev)) {
 769                 if (edev->dev_info.xdp_supported)
 770                         ndev->netdev_ops = &qede_netdev_vf_xdp_ops;
 771                 else
 772                         ndev->netdev_ops = &qede_netdev_vf_ops;
 773         } else {
 774                 ndev->netdev_ops = &qede_netdev_ops;
 775         }
 776
 777         qede_set_ethtool_ops(ndev);
 778
 779         ndev->priv_flags |= IFF_UNICAST_FLT;
 780
 781         /* user-changeble features */
 782         hw_features = NETIF_F_GRO | NETIF_F_GRO_HW | NETIF_F_SG |
 783                       NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
 784                       NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_HW_TC;
 785
 786         if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1)
 787                 hw_features |= NETIF_F_NTUPLE;
 788
 789         if (edev->dev_info.common.vxlan_enable ||
 790             edev->dev_info.common.geneve_enable)
 791                 udp_tunnel_enable = true;
 792
 793         if (udp_tunnel_enable || edev->dev_info.common.gre_enable) {
 794                 hw_features |= NETIF_F_TSO_ECN;
 795                 ndev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
 796                                         NETIF_F_SG | NETIF_F_TSO |
 797                                         NETIF_F_TSO_ECN | NETIF_F_TSO6 |
 798                                         NETIF_F_RXCSUM;
 799         }
 800
 801         if (udp_tunnel_enable) {
 802                 hw_features |= (NETIF_F_GSO_UDP_TUNNEL |
 803                                 NETIF_F_GSO_UDP_TUNNEL_CSUM);
 804                 ndev->hw_enc_features |= (NETIF_F_GSO_UDP_TUNNEL |
 805                                           NETIF_F_GSO_UDP_TUNNEL_CSUM);
 806         }
 807
 808         if (edev->dev_info.common.gre_enable) {
 809                 hw_features |= (NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM);
 810                 ndev->hw_enc_features |= (NETIF_F_GSO_GRE |
 811                                           NETIF_F_GSO_GRE_CSUM);
 812         }
 813
 814         ndev->vlan_features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
 815                               NETIF_F_HIGHDMA;
 816         ndev->features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
 817                          NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA |
 818                          NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_TX;
 819
 820         ndev->hw_features = hw_features;
 821
 822         /* MTU range: 46 - 9600 */
 823         ndev->min_mtu = ETH_ZLEN - ETH_HLEN;
 824         ndev->max_mtu = QEDE_MAX_JUMBO_PACKET_SIZE;
 825
 826         /* Set network device HW mac */
 827         ether_addr_copy(edev->ndev->dev_addr, edev->dev_info.common.hw_mac);
 828
 829         ndev->mtu = edev->dev_info.common.mtu;
 830 }
 831
 832 /* This function converts from 32b param to two params of level and module
 833  * Input 32b decoding:
 834  * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
 835  * 'happy' flow, e.g. memory allocation failed.
 836  * b30 - enable all INFO prints. INFO prints are for major steps in the flow
 837  * and provide important parameters.
 838  * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
 839  * module. VERBOSE prints are for tracking the specific flow in low level.
 840  *
 841  * Notice that the level should be that of the lowest required logs.
 842  */
 843 void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level)
 844 {
 845         *p_dp_level = QED_LEVEL_NOTICE;
 846         *p_dp_module = 0;
 847
 848         if (debug & QED_LOG_VERBOSE_MASK) {
 849                 *p_dp_level = QED_LEVEL_VERBOSE;
 850                 *p_dp_module = (debug & 0x3FFFFFFF);
 851         } else if (debug & QED_LOG_INFO_MASK) {
 852                 *p_dp_level = QED_LEVEL_INFO;
 853         } else if (debug & QED_LOG_NOTICE_MASK) {
 854                 *p_dp_level = QED_LEVEL_NOTICE;
 855         }
 856 }
 857
 858 static void qede_free_fp_array(struct qede_dev *edev)
 859 {
 860         if (edev->fp_array) {
 861                 struct qede_fastpath *fp;
 862                 int i;
 863
 864                 for_each_queue(i) {
 865                         fp = &edev->fp_array[i];
 866
 867                         kfree(fp->sb_info);
 868                         /* Handle mem alloc failure case where qede_init_fp
 869                          * didn't register xdp_rxq_info yet.
 870                          * Implicit only (fp->type & QEDE_FASTPATH_RX)
 871                          */
 872                         if (fp->rxq && xdp_rxq_info_is_reg(&fp->rxq->xdp_rxq))
 873                                 xdp_rxq_info_unreg(&fp->rxq->xdp_rxq);
 874                         kfree(fp->rxq);
 875                         kfree(fp->xdp_tx);
 876                         kfree(fp->txq);
 877                 }
 878                 kfree(edev->fp_array);
 879         }
 880
 881         edev->num_queues = 0;
 882         edev->fp_num_tx = 0;
 883         edev->fp_num_rx = 0;
 884 }
 885
 886 static int qede_alloc_fp_array(struct qede_dev *edev)
 887 {
 888         u8 fp_combined, fp_rx = edev->fp_num_rx;
 889         struct qede_fastpath *fp;
 890         int i;
 891
 892         edev->fp_array = kcalloc(QEDE_QUEUE_CNT(edev),
 893                                  sizeof(*edev->fp_array), GFP_KERNEL);
 894         if (!edev->fp_array) {
 895                 DP_NOTICE(edev, "fp array allocation failed\n");
 896                 goto err;
 897         }
 898
 899         fp_combined = QEDE_QUEUE_CNT(edev) - fp_rx - edev->fp_num_tx;
 900
 901         /* Allocate the FP elements for Rx queues followed by combined and then
 902          * the Tx. This ordering should be maintained so that the respective
 903          * queues (Rx or Tx) will be together in the fastpath array and the
 904          * associated ids will be sequential.
 905          */
 906         for_each_queue(i) {
 907                 fp = &edev->fp_array[i];
 908
 909                 fp->sb_info = kzalloc(sizeof(*fp->sb_info), GFP_KERNEL);
 910                 if (!fp->sb_info) {
 911                         DP_NOTICE(edev, "sb info struct allocation failed\n");
 912                         goto err;
 913                 }
 914
 915                 if (fp_rx) {
 916                         fp->type = QEDE_FASTPATH_RX;
 917                         fp_rx--;
 918                 } else if (fp_combined) {
 919                         fp->type = QEDE_FASTPATH_COMBINED;
 920                         fp_combined--;
 921                 } else {
 922                         fp->type = QEDE_FASTPATH_TX;
 923                 }
 924
 925                 if (fp->type & QEDE_FASTPATH_TX) {
 926                         fp->txq = kcalloc(edev->dev_info.num_tc,
 927                                           sizeof(*fp->txq), GFP_KERNEL);
 928                         if (!fp->txq)
 929                                 goto err;
 930                 }
 931
 932                 if (fp->type & QEDE_FASTPATH_RX) {
 933                         fp->rxq = kzalloc(sizeof(*fp->rxq), GFP_KERNEL);
 934                         if (!fp->rxq)
 935                                 goto err;
 936
 937                         if (edev->xdp_prog) {
 938                                 fp->xdp_tx = kzalloc(sizeof(*fp->xdp_tx),
 939                                                      GFP_KERNEL);
 940                                 if (!fp->xdp_tx)
 941                                         goto err;
 942                                 fp->type |= QEDE_FASTPATH_XDP;
 943                         }
 944                 }
 945         }
 946
 947         return 0;
 948 err:
 949         qede_free_fp_array(edev);
 950         return -ENOMEM;
 951 }
 952
 953 static void qede_sp_task(struct work_struct *work)
 954 {
 955         struct qede_dev *edev = container_of(work, struct qede_dev,
 956                                              sp_task.work);
 957
 958         __qede_lock(edev);
 959
 960         if (test_and_clear_bit(QEDE_SP_RX_MODE, &edev->sp_flags))
 961                 if (edev->state == QEDE_STATE_OPEN)
 962                         qede_config_rx_mode(edev->ndev);
 963
 964 #ifdef CONFIG_RFS_ACCEL
 965         if (test_and_clear_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags)) {
 966                 if (edev->state == QEDE_STATE_OPEN)
 967                         qede_process_arfs_filters(edev, false);
 968         }
 969 #endif
 970         __qede_unlock(edev);
 971 }
 972
 973 static void qede_update_pf_params(struct qed_dev *cdev)
 974 {
 975         struct qed_pf_params pf_params;
 976         u16 num_cons;
 977
 978         /* 64 rx + 64 tx + 64 XDP */
 979         memset(&pf_params, 0, sizeof(struct qed_pf_params));
 980
 981         /* 1 rx + 1 xdp + max tx cos */
 982         num_cons = QED_MIN_L2_CONS;
 983
 984         pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * num_cons;
 985
 986         /* Same for VFs - make sure they'll have sufficient connections
 987          * to support XDP Tx queues.
 988          */
 989         pf_params.eth_pf_params.num_vf_cons = 48;
 990
 991         pf_params.eth_pf_params.num_arfs_filters = QEDE_RFS_MAX_FLTR;
 992         qed_ops->common->update_pf_params(cdev, &pf_params);
 993 }
 994
 995 #define QEDE_FW_VER_STR_SIZE    80
 996
 997 static void qede_log_probe(struct qede_dev *edev)
 998 {
 999         struct qed_dev_info *p_dev_info = &edev->dev_info.common;
1000         u8 buf[QEDE_FW_VER_STR_SIZE];
1001         size_t left_size;
1002
1003         snprintf(buf, QEDE_FW_VER_STR_SIZE,
1004                  "Storm FW %d.%d.%d.%d, Management FW %d.%d.%d.%d",
1005                  p_dev_info->fw_major, p_dev_info->fw_minor, p_dev_info->fw_rev,
1006                  p_dev_info->fw_eng,
1007                  (p_dev_info->mfw_rev & QED_MFW_VERSION_3_MASK) >>
1008                  QED_MFW_VERSION_3_OFFSET,
1009                  (p_dev_info->mfw_rev & QED_MFW_VERSION_2_MASK) >>
1010                  QED_MFW_VERSION_2_OFFSET,
1011                  (p_dev_info->mfw_rev & QED_MFW_VERSION_1_MASK) >>
1012                  QED_MFW_VERSION_1_OFFSET,
1013                  (p_dev_info->mfw_rev & QED_MFW_VERSION_0_MASK) >>
1014                  QED_MFW_VERSION_0_OFFSET);
1015
1016         left_size = QEDE_FW_VER_STR_SIZE - strlen(buf);
1017         if (p_dev_info->mbi_version && left_size)
1018                 snprintf(buf + strlen(buf), left_size,
1019                          " [MBI %d.%d.%d]",
1020                          (p_dev_info->mbi_version & QED_MBI_VERSION_2_MASK) >>
1021                          QED_MBI_VERSION_2_OFFSET,
1022                          (p_dev_info->mbi_version & QED_MBI_VERSION_1_MASK) >>
1023                          QED_MBI_VERSION_1_OFFSET,
1024                          (p_dev_info->mbi_version & QED_MBI_VERSION_0_MASK) >>
1025                          QED_MBI_VERSION_0_OFFSET);
1026
1027         pr_info("qede %02x:%02x.%02x: %s [%s]\n", edev->pdev->bus->number,
1028                 PCI_SLOT(edev->pdev->devfn), PCI_FUNC(edev->pdev->devfn),
1029                 buf, edev->ndev->name);
1030 }
1031
1032 enum qede_probe_mode {
1033         QEDE_PROBE_NORMAL,
1034 };
1035
1036 static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
1037                         bool is_vf, enum qede_probe_mode mode)
1038 {
1039         struct qed_probe_params probe_params;
1040         struct qed_slowpath_params sp_params;
1041         struct qed_dev_eth_info dev_info;
1042         struct qede_dev *edev;
1043         struct qed_dev *cdev;
1044         int rc;
1045
1046         if (unlikely(dp_level & QED_LEVEL_INFO))
1047                 pr_notice("Starting qede probe\n");
1048
1049         memset(&probe_params, 0, sizeof(probe_params));
1050         probe_params.protocol = QED_PROTOCOL_ETH;
1051         probe_params.dp_module = dp_module;
1052         probe_params.dp_level = dp_level;
1053         probe_params.is_vf = is_vf;
1054         cdev = qed_ops->common->probe(pdev, &probe_params);
1055         if (!cdev) {
1056                 rc = -ENODEV;
1057                 goto err0;
1058         }
1059
1060         qede_update_pf_params(cdev);
1061
1062         /* Start the Slowpath-process */
1063         memset(&sp_params, 0, sizeof(sp_params));
1064         sp_params.int_mode = QED_INT_MODE_MSIX;
1065         sp_params.drv_major = QEDE_MAJOR_VERSION;
1066         sp_params.drv_minor = QEDE_MINOR_VERSION;
1067         sp_params.drv_rev = QEDE_REVISION_VERSION;
1068         sp_params.drv_eng = QEDE_ENGINEERING_VERSION;
1069         strlcpy(sp_params.name, "qede LAN", QED_DRV_VER_STR_SIZE);
1070         rc = qed_ops->common->slowpath_start(cdev, &sp_params);
1071         if (rc) {
1072                 pr_notice("Cannot start slowpath\n");
1073                 goto err1;
1074         }
1075
1076         /* Learn information crucial for qede to progress */
1077         rc = qed_ops->fill_dev_info(cdev, &dev_info);
1078         if (rc)
1079                 goto err2;
1080
1081         edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module,
1082                                    dp_level);
1083         if (!edev) {
1084                 rc = -ENOMEM;
1085                 goto err2;
1086         }
1087
1088         if (is_vf)
1089                 set_bit(QEDE_FLAGS_IS_VF, &edev->flags);
1090
1091         qede_init_ndev(edev);
1092
1093         rc = qede_rdma_dev_add(edev);
1094         if (rc)
1095                 goto err3;
1096
1097         /* Prepare the lock prior to the registration of the netdev,
1098          * as once it's registered we might reach flows requiring it
1099          * [it's even possible to reach a flow needing it directly
1100          * from there, although it's unlikely].
1101          */
1102         INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task);
1103         mutex_init(&edev->qede_lock);
1104         rc = register_netdev(edev->ndev);
1105         if (rc) {
1106                 DP_NOTICE(edev, "Cannot register net-device\n");
1107                 goto err4;
1108         }
1109
1110         edev->ops->common->set_name(cdev, edev->ndev->name);
1111
1112         /* PTP not supported on VFs */
1113         if (!is_vf)
1114                 qede_ptp_enable(edev, true);
1115
1116         edev->ops->register_ops(cdev, &qede_ll_ops, edev);
1117
1118 #ifdef CONFIG_DCB
1119         if (!IS_VF(edev))
1120                 qede_set_dcbnl_ops(edev->ndev);
1121 #endif
1122
1123         edev->rx_copybreak = QEDE_RX_HDR_SIZE;
1124
1125         qede_log_probe(edev);
1126         return 0;
1127
1128 err4:
1129         qede_rdma_dev_remove(edev);
1130 err3:
1131         free_netdev(edev->ndev);
1132 err2:
1133         qed_ops->common->slowpath_stop(cdev);
1134 err1:
1135         qed_ops->common->remove(cdev);
1136 err0:
1137         return rc;
1138 }
1139
1140 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1141 {
1142         bool is_vf = false;
1143         u32 dp_module = 0;
1144         u8 dp_level = 0;
1145
1146         switch ((enum qede_pci_private)id->driver_data) {
1147         case QEDE_PRIVATE_VF:
1148                 if (debug & QED_LOG_VERBOSE_MASK)
1149                         dev_err(&pdev->dev, "Probing a VF\n");
1150                 is_vf = true;
1151                 break;
1152         default:
1153                 if (debug & QED_LOG_VERBOSE_MASK)
1154                         dev_err(&pdev->dev, "Probing a PF\n");
1155         }
1156
1157         qede_config_debug(debug, &dp_module, &dp_level);
1158
1159         return __qede_probe(pdev, dp_module, dp_level, is_vf,
1160                             QEDE_PROBE_NORMAL);
1161 }
1162
1163 enum qede_remove_mode {
1164         QEDE_REMOVE_NORMAL,
1165 };
1166
1167 static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode)
1168 {
1169         struct net_device *ndev = pci_get_drvdata(pdev);
1170         struct qede_dev *edev = netdev_priv(ndev);
1171         struct qed_dev *cdev = edev->cdev;
1172
1173         DP_INFO(edev, "Starting qede_remove\n");
1174
1175         qede_rdma_dev_remove(edev);
1176         unregister_netdev(ndev);
1177         cancel_delayed_work_sync(&edev->sp_task);
1178
1179         qede_ptp_disable(edev);
1180
1181         edev->ops->common->set_power_state(cdev, PCI_D0);
1182
1183         pci_set_drvdata(pdev, NULL);
1184
1185         /* Use global ops since we've freed edev */
1186         qed_ops->common->slowpath_stop(cdev);
1187         if (system_state == SYSTEM_POWER_OFF)
1188                 return;
1189         qed_ops->common->remove(cdev);
1190
1191         /* Since this can happen out-of-sync with other flows,
1192          * don't release the netdevice until after slowpath stop
1193          * has been called to guarantee various other contexts
1194          * [e.g., QED register callbacks] won't break anything when
1195          * accessing the netdevice.
1196          */
1197          free_netdev(ndev);
1198
1199         dev_info(&pdev->dev, "Ending qede_remove successfully\n");
1200 }
1201
1202 static void qede_remove(struct pci_dev *pdev)
1203 {
1204         __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1205 }
1206
1207 static void qede_shutdown(struct pci_dev *pdev)
1208 {
1209         __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1210 }
1211
1212 /* -------------------------------------------------------------------------
1213  * START OF LOAD / UNLOAD
1214  * -------------------------------------------------------------------------
1215  */
1216
1217 static int qede_set_num_queues(struct qede_dev *edev)
1218 {
1219         int rc;
1220         u16 rss_num;
1221
1222         /* Setup queues according to possible resources*/
1223         if (edev->req_queues)
1224                 rss_num = edev->req_queues;
1225         else
1226                 rss_num = netif_get_num_default_rss_queues() *
1227                           edev->dev_info.common.num_hwfns;
1228
1229         rss_num = min_t(u16, QEDE_MAX_RSS_CNT(edev), rss_num);
1230
1231         rc = edev->ops->common->set_fp_int(edev->cdev, rss_num);
1232         if (rc > 0) {
1233                 /* Managed to request interrupts for our queues */
1234                 edev->num_queues = rc;
1235                 DP_INFO(edev, "Managed %d [of %d] RSS queues\n",
1236                         QEDE_QUEUE_CNT(edev), rss_num);
1237                 rc = 0;
1238         }
1239
1240         edev->fp_num_tx = edev->req_num_tx;
1241         edev->fp_num_rx = edev->req_num_rx;
1242
1243         return rc;
1244 }
1245
1246 static void qede_free_mem_sb(struct qede_dev *edev, struct qed_sb_info *sb_info,
1247                              u16 sb_id)
1248 {
1249         if (sb_info->sb_virt) {
1250                 edev->ops->common->sb_release(edev->cdev, sb_info, sb_id);
1251                 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_info->sb_virt),
1252                                   (void *)sb_info->sb_virt, sb_info->sb_phys);
1253                 memset(sb_info, 0, sizeof(*sb_info));
1254         }
1255 }
1256
1257 /* This function allocates fast-path status block memory */
1258 static int qede_alloc_mem_sb(struct qede_dev *edev,
1259                              struct qed_sb_info *sb_info, u16 sb_id)
1260 {
1261         struct status_block_e4 *sb_virt;
1262         dma_addr_t sb_phys;
1263         int rc;
1264
1265         sb_virt = dma_alloc_coherent(&edev->pdev->dev,
1266                                      sizeof(*sb_virt), &sb_phys, GFP_KERNEL);
1267         if (!sb_virt) {
1268                 DP_ERR(edev, "Status block allocation failed\n");
1269                 return -ENOMEM;
1270         }
1271
1272         rc = edev->ops->common->sb_init(edev->cdev, sb_info,
1273                                         sb_virt, sb_phys, sb_id,
1274                                         QED_SB_TYPE_L2_QUEUE);
1275         if (rc) {
1276                 DP_ERR(edev, "Status block initialization failed\n");
1277                 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_virt),
1278                                   sb_virt, sb_phys);
1279                 return rc;
1280         }
1281
1282         return 0;
1283 }
1284
1285 static void qede_free_rx_buffers(struct qede_dev *edev,
1286                                  struct qede_rx_queue *rxq)
1287 {
1288         u16 i;
1289
1290         for (i = rxq->sw_rx_cons; i != rxq->sw_rx_prod; i++) {
1291                 struct sw_rx_data *rx_buf;
1292                 struct page *data;
1293
1294                 rx_buf = &rxq->sw_rx_ring[i & NUM_RX_BDS_MAX];
1295                 data = rx_buf->data;
1296
1297                 dma_unmap_page(&edev->pdev->dev,
1298                                rx_buf->mapping, PAGE_SIZE, rxq->data_direction);
1299
1300                 rx_buf->data = NULL;
1301                 __free_page(data);
1302         }
1303 }
1304
1305 static void qede_free_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1306 {
1307         /* Free rx buffers */
1308         qede_free_rx_buffers(edev, rxq);
1309
1310         /* Free the parallel SW ring */
1311         kfree(rxq->sw_rx_ring);
1312
1313         /* Free the real RQ ring used by FW */
1314         edev->ops->common->chain_free(edev->cdev, &rxq->rx_bd_ring);
1315         edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring);
1316 }
1317
1318 static void qede_set_tpa_param(struct qede_rx_queue *rxq)
1319 {
1320         int i;
1321
1322         for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1323                 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1324
1325                 tpa_info->state = QEDE_AGG_STATE_NONE;
1326         }
1327 }
1328
1329 /* This function allocates all memory needed per Rx queue */
1330 static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1331 {
1332         int i, rc, size;
1333
1334         rxq->num_rx_buffers = edev->q_num_rx_buffers;
1335
1336         rxq->rx_buf_size = NET_IP_ALIGN + ETH_OVERHEAD + edev->ndev->mtu;
1337
1338         rxq->rx_headroom = edev->xdp_prog ? XDP_PACKET_HEADROOM : NET_SKB_PAD;
1339         size = rxq->rx_headroom +
1340                SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
1341
1342         /* Make sure that the headroom and  payload fit in a single page */
1343         if (rxq->rx_buf_size + size > PAGE_SIZE)
1344                 rxq->rx_buf_size = PAGE_SIZE - size;
1345
1346         /* Segment size to spilt a page in multiple equal parts ,
1347          * unless XDP is used in which case we'd use the entire page.
1348          */
1349         if (!edev->xdp_prog) {
1350                 size = size + rxq->rx_buf_size;
1351                 rxq->rx_buf_seg_size = roundup_pow_of_two(size);
1352         } else {
1353                 rxq->rx_buf_seg_size = PAGE_SIZE;
1354         }
1355
1356         /* Allocate the parallel driver ring for Rx buffers */
1357         size = sizeof(*rxq->sw_rx_ring) * RX_RING_SIZE;
1358         rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL);
1359         if (!rxq->sw_rx_ring) {
1360                 DP_ERR(edev, "Rx buffers ring allocation failed\n");
1361                 rc = -ENOMEM;
1362                 goto err;
1363         }
1364
1365         /* Allocate FW Rx ring  */
1366         rc = edev->ops->common->chain_alloc(edev->cdev,
1367                                             QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1368                                             QED_CHAIN_MODE_NEXT_PTR,
1369                                             QED_CHAIN_CNT_TYPE_U16,
1370                                             RX_RING_SIZE,
1371                                             sizeof(struct eth_rx_bd),
1372                                             &rxq->rx_bd_ring, NULL);
1373         if (rc)
1374                 goto err;
1375
1376         /* Allocate FW completion ring */
1377         rc = edev->ops->common->chain_alloc(edev->cdev,
1378                                             QED_CHAIN_USE_TO_CONSUME,
1379                                             QED_CHAIN_MODE_PBL,
1380                                             QED_CHAIN_CNT_TYPE_U16,
1381                                             RX_RING_SIZE,
1382                                             sizeof(union eth_rx_cqe),
1383                                             &rxq->rx_comp_ring, NULL);
1384         if (rc)
1385                 goto err;
1386
1387         /* Allocate buffers for the Rx ring */
1388         rxq->filled_buffers = 0;
1389         for (i = 0; i < rxq->num_rx_buffers; i++) {
1390                 rc = qede_alloc_rx_buffer(rxq, false);
1391                 if (rc) {
1392                         DP_ERR(edev,
1393                                "Rx buffers allocation failed at index %d\n", i);
1394                         goto err;
1395                 }
1396         }
1397
1398         if (!edev->gro_disable)
1399                 qede_set_tpa_param(rxq);
1400 err:
1401         return rc;
1402 }
1403
1404 static void qede_free_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1405 {
1406         /* Free the parallel SW ring */
1407         if (txq->is_xdp)
1408                 kfree(txq->sw_tx_ring.xdp);
1409         else
1410                 kfree(txq->sw_tx_ring.skbs);
1411
1412         /* Free the real RQ ring used by FW */
1413         edev->ops->common->chain_free(edev->cdev, &txq->tx_pbl);
1414 }
1415
1416 /* This function allocates all memory needed per Tx queue */
1417 static int qede_alloc_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1418 {
1419         union eth_tx_bd_types *p_virt;
1420         int size, rc;
1421
1422         txq->num_tx_buffers = edev->q_num_tx_buffers;
1423
1424         /* Allocate the parallel driver ring for Tx buffers */
1425         if (txq->is_xdp) {
1426                 size = sizeof(*txq->sw_tx_ring.xdp) * txq->num_tx_buffers;
1427                 txq->sw_tx_ring.xdp = kzalloc(size, GFP_KERNEL);
1428                 if (!txq->sw_tx_ring.xdp)
1429                         goto err;
1430         } else {
1431                 size = sizeof(*txq->sw_tx_ring.skbs) * txq->num_tx_buffers;
1432                 txq->sw_tx_ring.skbs = kzalloc(size, GFP_KERNEL);
1433                 if (!txq->sw_tx_ring.skbs)
1434                         goto err;
1435         }
1436
1437         rc = edev->ops->common->chain_alloc(edev->cdev,
1438                                             QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1439                                             QED_CHAIN_MODE_PBL,
1440                                             QED_CHAIN_CNT_TYPE_U16,
1441                                             txq->num_tx_buffers,
1442                                             sizeof(*p_virt),
1443                                             &txq->tx_pbl, NULL);
1444         if (rc)
1445                 goto err;
1446
1447         return 0;
1448
1449 err:
1450         qede_free_mem_txq(edev, txq);
1451         return -ENOMEM;
1452 }
1453
1454 /* This function frees all memory of a single fp */
1455 static void qede_free_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1456 {
1457         qede_free_mem_sb(edev, fp->sb_info, fp->id);
1458
1459         if (fp->type & QEDE_FASTPATH_RX)
1460                 qede_free_mem_rxq(edev, fp->rxq);
1461
1462         if (fp->type & QEDE_FASTPATH_XDP)
1463                 qede_free_mem_txq(edev, fp->xdp_tx);
1464
1465         if (fp->type & QEDE_FASTPATH_TX) {
1466                 int cos;
1467
1468                 for_each_cos_in_txq(edev, cos)
1469                         qede_free_mem_txq(edev, &fp->txq[cos]);
1470         }
1471 }
1472
1473 /* This function allocates all memory needed for a single fp (i.e. an entity
1474  * which contains status block, one rx queue and/or multiple per-TC tx queues.
1475  */
1476 static int qede_alloc_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1477 {
1478         int rc = 0;
1479
1480         rc = qede_alloc_mem_sb(edev, fp->sb_info, fp->id);
1481         if (rc)
1482                 goto out;
1483
1484         if (fp->type & QEDE_FASTPATH_RX) {
1485                 rc = qede_alloc_mem_rxq(edev, fp->rxq);
1486                 if (rc)
1487                         goto out;
1488         }
1489
1490         if (fp->type & QEDE_FASTPATH_XDP) {
1491                 rc = qede_alloc_mem_txq(edev, fp->xdp_tx);
1492                 if (rc)
1493                         goto out;
1494         }
1495
1496         if (fp->type & QEDE_FASTPATH_TX) {
1497                 int cos;
1498
1499                 for_each_cos_in_txq(edev, cos) {
1500                         rc = qede_alloc_mem_txq(edev, &fp->txq[cos]);
1501                         if (rc)
1502                                 goto out;
1503                 }
1504         }
1505
1506 out:
1507         return rc;
1508 }
1509
1510 static void qede_free_mem_load(struct qede_dev *edev)
1511 {
1512         int i;
1513
1514         for_each_queue(i) {
1515                 struct qede_fastpath *fp = &edev->fp_array[i];
1516
1517                 qede_free_mem_fp(edev, fp);
1518         }
1519 }
1520
1521 /* This function allocates all qede memory at NIC load. */
1522 static int qede_alloc_mem_load(struct qede_dev *edev)
1523 {
1524         int rc = 0, queue_id;
1525
1526         for (queue_id = 0; queue_id < QEDE_QUEUE_CNT(edev); queue_id++) {
1527                 struct qede_fastpath *fp = &edev->fp_array[queue_id];
1528
1529                 rc = qede_alloc_mem_fp(edev, fp);
1530                 if (rc) {
1531                         DP_ERR(edev,
1532                                "Failed to allocate memory for fastpath - rss id = %d\n",
1533                                queue_id);
1534                         qede_free_mem_load(edev);
1535                         return rc;
1536                 }
1537         }
1538
1539         return 0;
1540 }
1541
1542 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
1543 static void qede_init_fp(struct qede_dev *edev)
1544 {
1545         int queue_id, rxq_index = 0, txq_index = 0;
1546         struct qede_fastpath *fp;
1547
1548         for_each_queue(queue_id) {
1549                 fp = &edev->fp_array[queue_id];
1550
1551                 fp->edev = edev;
1552                 fp->id = queue_id;
1553
1554                 if (fp->type & QEDE_FASTPATH_XDP) {
1555                         fp->xdp_tx->index = QEDE_TXQ_IDX_TO_XDP(edev,
1556                                                                 rxq_index);
1557                         fp->xdp_tx->is_xdp = 1;
1558                 }
1559
1560                 if (fp->type & QEDE_FASTPATH_RX) {
1561                         fp->rxq->rxq_id = rxq_index++;
1562
1563                         /* Determine how to map buffers for this queue */
1564                         if (fp->type & QEDE_FASTPATH_XDP)
1565                                 fp->rxq->data_direction = DMA_BIDIRECTIONAL;
1566                         else
1567                                 fp->rxq->data_direction = DMA_FROM_DEVICE;
1568                         fp->rxq->dev = &edev->pdev->dev;
1569
1570                         /* Driver have no error path from here */
1571                         WARN_ON(xdp_rxq_info_reg(&fp->rxq->xdp_rxq, edev->ndev,
1572                                                  fp->rxq->rxq_id) < 0);
1573                 }
1574
1575                 if (fp->type & QEDE_FASTPATH_TX) {
1576                         int cos;
1577
1578                         for_each_cos_in_txq(edev, cos) {
1579                                 struct qede_tx_queue *txq = &fp->txq[cos];
1580                                 u16 ndev_tx_id;
1581
1582                                 txq->cos = cos;
1583                                 txq->index = txq_index;
1584                                 ndev_tx_id = QEDE_TXQ_TO_NDEV_TXQ_ID(edev, txq);
1585                                 txq->ndev_txq_id = ndev_tx_id;
1586
1587                                 if (edev->dev_info.is_legacy)
1588                                         txq->is_legacy = 1;
1589                                 txq->dev = &edev->pdev->dev;
1590                         }
1591
1592                         txq_index++;
1593                 }
1594
1595                 snprintf(fp->name, sizeof(fp->name), "%s-fp-%d",
1596                          edev->ndev->name, queue_id);
1597         }
1598
1599         edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO_HW);
1600 }
1601
1602 static int qede_set_real_num_queues(struct qede_dev *edev)
1603 {
1604         int rc = 0;
1605
1606         rc = netif_set_real_num_tx_queues(edev->ndev,
1607                                           QEDE_TSS_COUNT(edev) *
1608                                           edev->dev_info.num_tc);
1609         if (rc) {
1610                 DP_NOTICE(edev, "Failed to set real number of Tx queues\n");
1611                 return rc;
1612         }
1613
1614         rc = netif_set_real_num_rx_queues(edev->ndev, QEDE_RSS_COUNT(edev));
1615         if (rc) {
1616                 DP_NOTICE(edev, "Failed to set real number of Rx queues\n");
1617                 return rc;
1618         }
1619
1620         return 0;
1621 }
1622
1623 static void qede_napi_disable_remove(struct qede_dev *edev)
1624 {
1625         int i;
1626
1627         for_each_queue(i) {
1628                 napi_disable(&edev->fp_array[i].napi);
1629
1630                 netif_napi_del(&edev->fp_array[i].napi);
1631         }
1632 }
1633
1634 static void qede_napi_add_enable(struct qede_dev *edev)
1635 {
1636         int i;
1637
1638         /* Add NAPI objects */
1639         for_each_queue(i) {
1640                 netif_napi_add(edev->ndev, &edev->fp_array[i].napi,
1641                                qede_poll, NAPI_POLL_WEIGHT);
1642                 napi_enable(&edev->fp_array[i].napi);
1643         }
1644 }
1645
1646 static void qede_sync_free_irqs(struct qede_dev *edev)
1647 {
1648         int i;
1649
1650         for (i = 0; i < edev->int_info.used_cnt; i++) {
1651                 if (edev->int_info.msix_cnt) {
1652                         synchronize_irq(edev->int_info.msix[i].vector);
1653                         free_irq(edev->int_info.msix[i].vector,
1654                                  &edev->fp_array[i]);
1655                 } else {
1656                         edev->ops->common->simd_handler_clean(edev->cdev, i);
1657                 }
1658         }
1659
1660         edev->int_info.used_cnt = 0;
1661 }
1662
1663 static int qede_req_msix_irqs(struct qede_dev *edev)
1664 {
1665         int i, rc;
1666
1667         /* Sanitize number of interrupts == number of prepared RSS queues */
1668         if (QEDE_QUEUE_CNT(edev) > edev->int_info.msix_cnt) {
1669                 DP_ERR(edev,
1670                        "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
1671                        QEDE_QUEUE_CNT(edev), edev->int_info.msix_cnt);
1672                 return -EINVAL;
1673         }
1674
1675         for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) {
1676 #ifdef CONFIG_RFS_ACCEL
1677                 struct qede_fastpath *fp = &edev->fp_array[i];
1678
1679                 if (edev->ndev->rx_cpu_rmap && (fp->type & QEDE_FASTPATH_RX)) {
1680                         rc = irq_cpu_rmap_add(edev->ndev->rx_cpu_rmap,
1681                                               edev->int_info.msix[i].vector);
1682                         if (rc) {
1683                                 DP_ERR(edev, "Failed to add CPU rmap\n");
1684                                 qede_free_arfs(edev);
1685                         }
1686                 }
1687 #endif
1688                 rc = request_irq(edev->int_info.msix[i].vector,
1689                                  qede_msix_fp_int, 0, edev->fp_array[i].name,
1690                                  &edev->fp_array[i]);
1691                 if (rc) {
1692                         DP_ERR(edev, "Request fp %d irq failed\n", i);
1693                         qede_sync_free_irqs(edev);
1694                         return rc;
1695                 }
1696                 DP_VERBOSE(edev, NETIF_MSG_INTR,
1697                            "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
1698                            edev->fp_array[i].name, i,
1699                            &edev->fp_array[i]);
1700                 edev->int_info.used_cnt++;
1701         }
1702
1703         return 0;
1704 }
1705
1706 static void qede_simd_fp_handler(void *cookie)
1707 {
1708         struct qede_fastpath *fp = (struct qede_fastpath *)cookie;
1709
1710         napi_schedule_irqoff(&fp->napi);
1711 }
1712
1713 static int qede_setup_irqs(struct qede_dev *edev)
1714 {
1715         int i, rc = 0;
1716
1717         /* Learn Interrupt configuration */
1718         rc = edev->ops->common->get_fp_int(edev->cdev, &edev->int_info);
1719         if (rc)
1720                 return rc;
1721
1722         if (edev->int_info.msix_cnt) {
1723                 rc = qede_req_msix_irqs(edev);
1724                 if (rc)
1725                         return rc;
1726                 edev->ndev->irq = edev->int_info.msix[0].vector;
1727         } else {
1728                 const struct qed_common_ops *ops;
1729
1730                 /* qed should learn receive the RSS ids and callbacks */
1731                 ops = edev->ops->common;
1732                 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++)
1733                         ops->simd_handler_config(edev->cdev,
1734                                                  &edev->fp_array[i], i,
1735                                                  qede_simd_fp_handler);
1736                 edev->int_info.used_cnt = QEDE_QUEUE_CNT(edev);
1737         }
1738         return 0;
1739 }
1740
1741 static int qede_drain_txq(struct qede_dev *edev,
1742                           struct qede_tx_queue *txq, bool allow_drain)
1743 {
1744         int rc, cnt = 1000;
1745
1746         while (txq->sw_tx_cons != txq->sw_tx_prod) {
1747                 if (!cnt) {
1748                         if (allow_drain) {
1749                                 DP_NOTICE(edev,
1750                                           "Tx queue[%d] is stuck, requesting MCP to drain\n",
1751                                           txq->index);
1752                                 rc = edev->ops->common->drain(edev->cdev);
1753                                 if (rc)
1754                                         return rc;
1755                                 return qede_drain_txq(edev, txq, false);
1756                         }
1757                         DP_NOTICE(edev,
1758                                   "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
1759                                   txq->index, txq->sw_tx_prod,
1760                                   txq->sw_tx_cons);
1761                         return -ENODEV;
1762                 }
1763                 cnt--;
1764                 usleep_range(1000, 2000);
1765                 barrier();
1766         }
1767
1768         /* FW finished processing, wait for HW to transmit all tx packets */
1769         usleep_range(1000, 2000);
1770
1771         return 0;
1772 }
1773
1774 static int qede_stop_txq(struct qede_dev *edev,
1775                          struct qede_tx_queue *txq, int rss_id)
1776 {
1777         /* delete doorbell from doorbell recovery mechanism */
1778         edev->ops->common->db_recovery_del(edev->cdev, txq->doorbell_addr,
1779                                            &txq->tx_db);
1780
1781         return edev->ops->q_tx_stop(edev->cdev, rss_id, txq->handle);
1782 }
1783
1784 static int qede_stop_queues(struct qede_dev *edev)
1785 {
1786         struct qed_update_vport_params *vport_update_params;
1787         struct qed_dev *cdev = edev->cdev;
1788         struct qede_fastpath *fp;
1789         int rc, i;
1790
1791         /* Disable the vport */
1792         vport_update_params = vzalloc(sizeof(*vport_update_params));
1793         if (!vport_update_params)
1794                 return -ENOMEM;
1795
1796         vport_update_params->vport_id = 0;
1797         vport_update_params->update_vport_active_flg = 1;
1798         vport_update_params->vport_active_flg = 0;
1799         vport_update_params->update_rss_flg = 0;
1800
1801         rc = edev->ops->vport_update(cdev, vport_update_params);
1802         vfree(vport_update_params);
1803
1804         if (rc) {
1805                 DP_ERR(edev, "Failed to update vport\n");
1806                 return rc;
1807         }
1808
1809         /* Flush Tx queues. If needed, request drain from MCP */
1810         for_each_queue(i) {
1811                 fp = &edev->fp_array[i];
1812
1813                 if (fp->type & QEDE_FASTPATH_TX) {
1814                         int cos;
1815
1816                         for_each_cos_in_txq(edev, cos) {
1817                                 rc = qede_drain_txq(edev, &fp->txq[cos], true);
1818                                 if (rc)
1819                                         return rc;
1820                         }
1821                 }
1822
1823                 if (fp->type & QEDE_FASTPATH_XDP) {
1824                         rc = qede_drain_txq(edev, fp->xdp_tx, true);
1825                         if (rc)
1826                                 return rc;
1827                 }
1828         }
1829
1830         /* Stop all Queues in reverse order */
1831         for (i = QEDE_QUEUE_CNT(edev) - 1; i >= 0; i--) {
1832                 fp = &edev->fp_array[i];
1833
1834                 /* Stop the Tx Queue(s) */
1835                 if (fp->type & QEDE_FASTPATH_TX) {
1836                         int cos;
1837
1838                         for_each_cos_in_txq(edev, cos) {
1839                                 rc = qede_stop_txq(edev, &fp->txq[cos], i);
1840                                 if (rc)
1841                                         return rc;
1842                         }
1843                 }
1844
1845                 /* Stop the Rx Queue */
1846                 if (fp->type & QEDE_FASTPATH_RX) {
1847                         rc = edev->ops->q_rx_stop(cdev, i, fp->rxq->handle);
1848                         if (rc) {
1849                                 DP_ERR(edev, "Failed to stop RXQ #%d\n", i);
1850                                 return rc;
1851                         }
1852                 }
1853
1854                 /* Stop the XDP forwarding queue */
1855                 if (fp->type & QEDE_FASTPATH_XDP) {
1856                         rc = qede_stop_txq(edev, fp->xdp_tx, i);
1857                         if (rc)
1858                                 return rc;
1859
1860                         bpf_prog_put(fp->rxq->xdp_prog);
1861                 }
1862         }
1863
1864         /* Stop the vport */
1865         rc = edev->ops->vport_stop(cdev, 0);
1866         if (rc)
1867                 DP_ERR(edev, "Failed to stop VPORT\n");
1868
1869         return rc;
1870 }
1871
1872 static int qede_start_txq(struct qede_dev *edev,
1873                           struct qede_fastpath *fp,
1874                           struct qede_tx_queue *txq, u8 rss_id, u16 sb_idx)
1875 {
1876         dma_addr_t phys_table = qed_chain_get_pbl_phys(&txq->tx_pbl);
1877         u32 page_cnt = qed_chain_get_page_cnt(&txq->tx_pbl);
1878         struct qed_queue_start_common_params params;
1879         struct qed_txq_start_ret_params ret_params;
1880         int rc;
1881
1882         memset(&params, 0, sizeof(params));
1883         memset(&ret_params, 0, sizeof(ret_params));
1884
1885         /* Let the XDP queue share the queue-zone with one of the regular txq.
1886          * We don't really care about its coalescing.
1887          */
1888         if (txq->is_xdp)
1889                 params.queue_id = QEDE_TXQ_XDP_TO_IDX(edev, txq);
1890         else
1891                 params.queue_id = txq->index;
1892
1893         params.p_sb = fp->sb_info;
1894         params.sb_idx = sb_idx;
1895         params.tc = txq->cos;
1896
1897         rc = edev->ops->q_tx_start(edev->cdev, rss_id, &params, phys_table,
1898                                    page_cnt, &ret_params);
1899         if (rc) {
1900                 DP_ERR(edev, "Start TXQ #%d failed %d\n", txq->index, rc);
1901                 return rc;
1902         }
1903
1904         txq->doorbell_addr = ret_params.p_doorbell;
1905         txq->handle = ret_params.p_handle;
1906
1907         /* Determine the FW consumer address associated */
1908         txq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[sb_idx];
1909
1910         /* Prepare the doorbell parameters */
1911         SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_DEST, DB_DEST_XCM);
1912         SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD, DB_AGG_CMD_SET);
1913         SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_VAL_SEL,
1914                   DQ_XCM_ETH_TX_BD_PROD_CMD);
1915         txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD;
1916
1917         /* register doorbell with doorbell recovery mechanism */
1918         rc = edev->ops->common->db_recovery_add(edev->cdev, txq->doorbell_addr,
1919                                                 &txq->tx_db, DB_REC_WIDTH_32B,
1920                                                 DB_REC_KERNEL);
1921
1922         return rc;
1923 }
1924
1925 static int qede_start_queues(struct qede_dev *edev, bool clear_stats)
1926 {
1927         int vlan_removal_en = 1;
1928         struct qed_dev *cdev = edev->cdev;
1929         struct qed_dev_info *qed_info = &edev->dev_info.common;
1930         struct qed_update_vport_params *vport_update_params;
1931         struct qed_queue_start_common_params q_params;
1932         struct qed_start_vport_params start = {0};
1933         int rc, i;
1934
1935         if (!edev->num_queues) {
1936                 DP_ERR(edev,
1937                        "Cannot update V-VPORT as active as there are no Rx queues\n");
1938                 return -EINVAL;
1939         }
1940
1941         vport_update_params = vzalloc(sizeof(*vport_update_params));
1942         if (!vport_update_params)
1943                 return -ENOMEM;
1944
1945         start.handle_ptp_pkts = !!(edev->ptp);
1946         start.gro_enable = !edev->gro_disable;
1947         start.mtu = edev->ndev->mtu;
1948         start.vport_id = 0;
1949         start.drop_ttl0 = true;
1950         start.remove_inner_vlan = vlan_removal_en;
1951         start.clear_stats = clear_stats;
1952
1953         rc = edev->ops->vport_start(cdev, &start);
1954
1955         if (rc) {
1956                 DP_ERR(edev, "Start V-PORT failed %d\n", rc);
1957                 goto out;
1958         }
1959
1960         DP_VERBOSE(edev, NETIF_MSG_IFUP,
1961                    "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
1962                    start.vport_id, edev->ndev->mtu + 0xe, vlan_removal_en);
1963
1964         for_each_queue(i) {
1965                 struct qede_fastpath *fp = &edev->fp_array[i];
1966                 dma_addr_t p_phys_table;
1967                 u32 page_cnt;
1968
1969                 if (fp->type & QEDE_FASTPATH_RX) {
1970                         struct qed_rxq_start_ret_params ret_params;
1971                         struct qede_rx_queue *rxq = fp->rxq;
1972                         __le16 *val;
1973
1974                         memset(&ret_params, 0, sizeof(ret_params));
1975                         memset(&q_params, 0, sizeof(q_params));
1976                         q_params.queue_id = rxq->rxq_id;
1977                         q_params.vport_id = 0;
1978                         q_params.p_sb = fp->sb_info;
1979                         q_params.sb_idx = RX_PI;
1980
1981                         p_phys_table =
1982                             qed_chain_get_pbl_phys(&rxq->rx_comp_ring);
1983                         page_cnt = qed_chain_get_page_cnt(&rxq->rx_comp_ring);
1984
1985                         rc = edev->ops->q_rx_start(cdev, i, &q_params,
1986                                                    rxq->rx_buf_size,
1987                                                    rxq->rx_bd_ring.p_phys_addr,
1988                                                    p_phys_table,
1989                                                    page_cnt, &ret_params);
1990                         if (rc) {
1991                                 DP_ERR(edev, "Start RXQ #%d failed %d\n", i,
1992                                        rc);
1993                                 goto out;
1994                         }
1995
1996                         /* Use the return parameters */
1997                         rxq->hw_rxq_prod_addr = ret_params.p_prod;
1998                         rxq->handle = ret_params.p_handle;
1999
2000                         val = &fp->sb_info->sb_virt->pi_array[RX_PI];
2001                         rxq->hw_cons_ptr = val;
2002
2003                         qede_update_rx_prod(edev, rxq);
2004                 }
2005
2006                 if (fp->type & QEDE_FASTPATH_XDP) {
2007                         rc = qede_start_txq(edev, fp, fp->xdp_tx, i, XDP_PI);
2008                         if (rc)
2009                                 goto out;
2010
2011                         fp->rxq->xdp_prog = bpf_prog_add(edev->xdp_prog, 1);
2012                         if (IS_ERR(fp->rxq->xdp_prog)) {
2013                                 rc = PTR_ERR(fp->rxq->xdp_prog);
2014                                 fp->rxq->xdp_prog = NULL;
2015                                 goto out;
2016                         }
2017                 }
2018
2019                 if (fp->type & QEDE_FASTPATH_TX) {
2020                         int cos;
2021
2022                         for_each_cos_in_txq(edev, cos) {
2023                                 rc = qede_start_txq(edev, fp, &fp->txq[cos], i,
2024                                                     TX_PI(cos));
2025                                 if (rc)
2026                                         goto out;
2027                         }
2028                 }
2029         }
2030
2031         /* Prepare and send the vport enable */
2032         vport_update_params->vport_id = start.vport_id;
2033         vport_update_params->update_vport_active_flg = 1;
2034         vport_update_params->vport_active_flg = 1;
2035
2036         if ((qed_info->b_inter_pf_switch || pci_num_vf(edev->pdev)) &&
2037             qed_info->tx_switching) {
2038                 vport_update_params->update_tx_switching_flg = 1;
2039                 vport_update_params->tx_switching_flg = 1;
2040         }
2041
2042         qede_fill_rss_params(edev, &vport_update_params->rss_params,
2043                              &vport_update_params->update_rss_flg);
2044
2045         rc = edev->ops->vport_update(cdev, vport_update_params);
2046         if (rc)
2047                 DP_ERR(edev, "Update V-PORT failed %d\n", rc);
2048
2049 out:
2050         vfree(vport_update_params);
2051         return rc;
2052 }
2053
2054 enum qede_unload_mode {
2055         QEDE_UNLOAD_NORMAL,
2056 };
2057
2058 static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode,
2059                         bool is_locked)
2060 {
2061         struct qed_link_params link_params;
2062         int rc;
2063
2064         DP_INFO(edev, "Starting qede unload\n");
2065
2066         if (!is_locked)
2067                 __qede_lock(edev);
2068
2069         clear_bit(QEDE_FLAGS_LINK_REQUESTED, &edev->flags);
2070
2071         edev->state = QEDE_STATE_CLOSED;
2072
2073         qede_rdma_dev_event_close(edev);
2074
2075         /* Close OS Tx */
2076         netif_tx_disable(edev->ndev);
2077         netif_carrier_off(edev->ndev);
2078
2079         /* Reset the link */
2080         memset(&link_params, 0, sizeof(link_params));
2081         link_params.link_up = false;
2082         edev->ops->common->set_link(edev->cdev, &link_params);
2083         rc = qede_stop_queues(edev);
2084         if (rc) {
2085                 qede_sync_free_irqs(edev);
2086                 goto out;
2087         }
2088
2089         DP_INFO(edev, "Stopped Queues\n");
2090
2091         qede_vlan_mark_nonconfigured(edev);
2092         edev->ops->fastpath_stop(edev->cdev);
2093
2094         if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
2095                 qede_poll_for_freeing_arfs_filters(edev);
2096                 qede_free_arfs(edev);
2097         }
2098
2099         /* Release the interrupts */
2100         qede_sync_free_irqs(edev);
2101         edev->ops->common->set_fp_int(edev->cdev, 0);
2102
2103         qede_napi_disable_remove(edev);
2104
2105         qede_free_mem_load(edev);
2106         qede_free_fp_array(edev);
2107
2108 out:
2109         if (!is_locked)
2110                 __qede_unlock(edev);
2111         DP_INFO(edev, "Ending qede unload\n");
2112 }
2113
2114 enum qede_load_mode {
2115         QEDE_LOAD_NORMAL,
2116         QEDE_LOAD_RELOAD,
2117 };
2118
2119 static int qede_load(struct qede_dev *edev, enum qede_load_mode mode,
2120                      bool is_locked)
2121 {
2122         struct qed_link_params link_params;
2123         u8 num_tc;
2124         int rc;
2125
2126         DP_INFO(edev, "Starting qede load\n");
2127
2128         if (!is_locked)
2129                 __qede_lock(edev);
2130
2131         rc = qede_set_num_queues(edev);
2132         if (rc)
2133                 goto out;
2134
2135         rc = qede_alloc_fp_array(edev);
2136         if (rc)
2137                 goto out;
2138
2139         qede_init_fp(edev);
2140
2141         rc = qede_alloc_mem_load(edev);
2142         if (rc)
2143                 goto err1;
2144         DP_INFO(edev, "Allocated %d Rx, %d Tx queues\n",
2145                 QEDE_RSS_COUNT(edev), QEDE_TSS_COUNT(edev));
2146
2147         rc = qede_set_real_num_queues(edev);
2148         if (rc)
2149                 goto err2;
2150
2151         if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
2152                 rc = qede_alloc_arfs(edev);
2153                 if (rc)
2154                         DP_NOTICE(edev, "aRFS memory allocation failed\n");
2155         }
2156
2157         qede_napi_add_enable(edev);
2158         DP_INFO(edev, "Napi added and enabled\n");
2159
2160         rc = qede_setup_irqs(edev);
2161         if (rc)
2162                 goto err3;
2163         DP_INFO(edev, "Setup IRQs succeeded\n");
2164
2165         rc = qede_start_queues(edev, mode != QEDE_LOAD_RELOAD);
2166         if (rc)
2167                 goto err4;
2168         DP_INFO(edev, "Start VPORT, RXQ and TXQ succeeded\n");
2169
2170         num_tc = netdev_get_num_tc(edev->ndev);
2171         num_tc = num_tc ? num_tc : edev->dev_info.num_tc;
2172         qede_setup_tc(edev->ndev, num_tc);
2173
2174         /* Program un-configured VLANs */
2175         qede_configure_vlan_filters(edev);
2176
2177         set_bit(QEDE_FLAGS_LINK_REQUESTED, &edev->flags);
2178
2179         /* Ask for link-up using current configuration */
2180         memset(&link_params, 0, sizeof(link_params));
2181         link_params.link_up = true;
2182         edev->ops->common->set_link(edev->cdev, &link_params);
2183
2184         edev->state = QEDE_STATE_OPEN;
2185
2186         DP_INFO(edev, "Ending successfully qede load\n");
2187
2188         goto out;
2189 err4:
2190         qede_sync_free_irqs(edev);
2191         memset(&edev->int_info.msix_cnt, 0, sizeof(struct qed_int_info));
2192 err3:
2193         qede_napi_disable_remove(edev);
2194 err2:
2195         qede_free_mem_load(edev);
2196 err1:
2197         edev->ops->common->set_fp_int(edev->cdev, 0);
2198         qede_free_fp_array(edev);
2199         edev->num_queues = 0;
2200         edev->fp_num_tx = 0;
2201         edev->fp_num_rx = 0;
2202 out:
2203         if (!is_locked)
2204                 __qede_unlock(edev);
2205
2206         return rc;
2207 }
2208
2209 /* 'func' should be able to run between unload and reload assuming interface
2210  * is actually running, or afterwards in case it's currently DOWN.
2211  */
2212 void qede_reload(struct qede_dev *edev,
2213                  struct qede_reload_args *args, bool is_locked)
2214 {
2215         if (!is_locked)
2216                 __qede_lock(edev);
2217
2218         /* Since qede_lock is held, internal state wouldn't change even
2219          * if netdev state would start transitioning. Check whether current
2220          * internal configuration indicates device is up, then reload.
2221          */
2222         if (edev->state == QEDE_STATE_OPEN) {
2223                 qede_unload(edev, QEDE_UNLOAD_NORMAL, true);
2224                 if (args)
2225                         args->func(edev, args);
2226                 qede_load(edev, QEDE_LOAD_RELOAD, true);
2227
2228                 /* Since no one is going to do it for us, re-configure */
2229                 qede_config_rx_mode(edev->ndev);
2230         } else if (args) {
2231                 args->func(edev, args);
2232         }
2233
2234         if (!is_locked)
2235                 __qede_unlock(edev);
2236 }
2237
2238 /* called with rtnl_lock */
2239 static int qede_open(struct net_device *ndev)
2240 {
2241         struct qede_dev *edev = netdev_priv(ndev);
2242         int rc;
2243
2244         netif_carrier_off(ndev);
2245
2246         edev->ops->common->set_power_state(edev->cdev, PCI_D0);
2247
2248         rc = qede_load(edev, QEDE_LOAD_NORMAL, false);
2249         if (rc)
2250                 return rc;
2251
2252         udp_tunnel_get_rx_info(ndev);
2253
2254         edev->ops->common->update_drv_state(edev->cdev, true);
2255
2256         return 0;
2257 }
2258
2259 static int qede_close(struct net_device *ndev)
2260 {
2261         struct qede_dev *edev = netdev_priv(ndev);
2262
2263         qede_unload(edev, QEDE_UNLOAD_NORMAL, false);
2264
2265         edev->ops->common->update_drv_state(edev->cdev, false);
2266
2267         return 0;
2268 }
2269
2270 static void qede_link_update(void *dev, struct qed_link_output *link)
2271 {
2272         struct qede_dev *edev = dev;
2273
2274         if (!test_bit(QEDE_FLAGS_LINK_REQUESTED, &edev->flags)) {
2275                 DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not ready\n");
2276                 return;
2277         }
2278
2279         if (link->link_up) {
2280                 if (!netif_carrier_ok(edev->ndev)) {
2281                         DP_NOTICE(edev, "Link is up\n");
2282                         netif_tx_start_all_queues(edev->ndev);
2283                         netif_carrier_on(edev->ndev);
2284                         qede_rdma_dev_event_open(edev);
2285                 }
2286         } else {
2287                 if (netif_carrier_ok(edev->ndev)) {
2288                         DP_NOTICE(edev, "Link is down\n");
2289                         netif_tx_disable(edev->ndev);
2290                         netif_carrier_off(edev->ndev);
2291                         qede_rdma_dev_event_close(edev);
2292                 }
2293         }
2294 }
2295
2296 static bool qede_is_txq_full(struct qede_dev *edev, struct qede_tx_queue *txq)
2297 {
2298         struct netdev_queue *netdev_txq;
2299
2300         netdev_txq = netdev_get_tx_queue(edev->ndev, txq->ndev_txq_id);
2301         if (netif_xmit_stopped(netdev_txq))
2302                 return true;
2303
2304         return false;
2305 }
2306
2307 static void qede_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data)
2308 {
2309         struct qede_dev *edev = dev;
2310         struct netdev_hw_addr *ha;
2311         int i;
2312
2313         if (edev->ndev->features & NETIF_F_IP_CSUM)
2314                 data->feat_flags |= QED_TLV_IP_CSUM;
2315         if (edev->ndev->features & NETIF_F_TSO)
2316                 data->feat_flags |= QED_TLV_LSO;
2317
2318         ether_addr_copy(data->mac[0], edev->ndev->dev_addr);
2319         memset(data->mac[1], 0, ETH_ALEN);
2320         memset(data->mac[2], 0, ETH_ALEN);
2321         /* Copy the first two UC macs */
2322         netif_addr_lock_bh(edev->ndev);
2323         i = 1;
2324         netdev_for_each_uc_addr(ha, edev->ndev) {
2325                 ether_addr_copy(data->mac[i++], ha->addr);
2326                 if (i == QED_TLV_MAC_COUNT)
2327                         break;
2328         }
2329
2330         netif_addr_unlock_bh(edev->ndev);
2331 }
2332
2333 static void qede_get_eth_tlv_data(void *dev, void *data)
2334 {
2335         struct qed_mfw_tlv_eth *etlv = data;
2336         struct qede_dev *edev = dev;
2337         struct qede_fastpath *fp;
2338         int i;
2339
2340         etlv->lso_maxoff_size = 0XFFFF;
2341         etlv->lso_maxoff_size_set = true;
2342         etlv->lso_minseg_size = (u16)ETH_TX_LSO_WINDOW_MIN_LEN;
2343         etlv->lso_minseg_size_set = true;
2344         etlv->prom_mode = !!(edev->ndev->flags & IFF_PROMISC);
2345         etlv->prom_mode_set = true;
2346         etlv->tx_descr_size = QEDE_TSS_COUNT(edev);
2347         etlv->tx_descr_size_set = true;
2348         etlv->rx_descr_size = QEDE_RSS_COUNT(edev);
2349         etlv->rx_descr_size_set = true;
2350         etlv->iov_offload = QED_MFW_TLV_IOV_OFFLOAD_VEB;
2351         etlv->iov_offload_set = true;
2352
2353         /* Fill information regarding queues; Should be done under the qede
2354          * lock to guarantee those don't change beneath our feet.
2355          */
2356         etlv->txqs_empty = true;
2357         etlv->rxqs_empty = true;
2358         etlv->num_txqs_full = 0;
2359         etlv->num_rxqs_full = 0;
2360
2361         __qede_lock(edev);
2362         for_each_queue(i) {
2363                 fp = &edev->fp_array[i];
2364                 if (fp->type & QEDE_FASTPATH_TX) {
2365                         struct qede_tx_queue *txq = QEDE_FP_TC0_TXQ(fp);
2366
2367                         if (txq->sw_tx_cons != txq->sw_tx_prod)
2368                                 etlv->txqs_empty = false;
2369                         if (qede_is_txq_full(edev, txq))
2370                                 etlv->num_txqs_full++;
2371                 }
2372                 if (fp->type & QEDE_FASTPATH_RX) {
2373                         if (qede_has_rx_work(fp->rxq))
2374                                 etlv->rxqs_empty = false;
2375
2376                         /* This one is a bit tricky; Firmware might stop
2377                          * placing packets if ring is not yet full.
2378                          * Give an approximation.
2379                          */
2380                         if (le16_to_cpu(*fp->rxq->hw_cons_ptr) -
2381                             qed_chain_get_cons_idx(&fp->rxq->rx_comp_ring) >
2382                             RX_RING_SIZE - 100)
2383                                 etlv->num_rxqs_full++;
2384                 }
2385         }
2386         __qede_unlock(edev);
2387
2388         etlv->txqs_empty_set = true;
2389         etlv->rxqs_empty_set = true;
2390         etlv->num_txqs_full_set = true;
2391         etlv->num_rxqs_full_set = true;
2392 }