root/drivers/net/ethernet/qlogic/qed/qed_main.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. qed_init
  2. qed_cleanup
  3. qed_set_coherency_mask
  4. qed_free_pci
  5. qed_init_pci
  6. qed_fill_dev_info
  7. qed_free_cdev
  8. qed_alloc_cdev
  9. qed_set_power_state
  10. qed_dl_param_get
  11. qed_dl_param_set
  12. qed_devlink_register
  13. qed_devlink_unregister
  14. qed_probe
  15. qed_remove
  16. qed_disable_msix
  17. qed_enable_msix
  18. qed_set_int_mode
  19. qed_simd_handler_config
  20. qed_simd_handler_clean
  21. qed_msix_sp_int
  22. qed_single_int
  23. qed_slowpath_irq_req
  24. qed_slowpath_tasklet_flush
  25. qed_slowpath_irq_sync
  26. qed_slowpath_irq_free
  27. qed_nic_stop
  28. qed_nic_setup
  29. qed_set_int_fp
  30. qed_get_int_fp
  31. qed_slowpath_setup_int
  32. qed_slowpath_vf_setup_int
  33. qed_unzip_data
  34. qed_alloc_stream_mem
  35. qed_free_stream_mem
  36. qed_update_pf_params
  37. qed_slowpath_delayed_work
  38. qed_periodic_db_rec_start
  39. qed_slowpath_wq_stop
  40. qed_slowpath_task
  41. qed_slowpath_wq_start
  42. qed_slowpath_start
  43. qed_slowpath_stop
  44. qed_set_name
  45. qed_sb_init
  46. qed_sb_release
  47. qed_can_link_change
  48. qed_set_link
  49. qed_get_port_type
  50. qed_get_link_data
  51. qed_fill_link_capability
  52. qed_fill_link
  53. qed_get_current_link
  54. qed_link_update
  55. qed_drain
  56. qed_nvm_flash_image_access_crc
  57. qed_nvm_flash_image_access
  58. qed_nvm_flash_image_file_start
  59. qed_nvm_flash_image_file_data
  60. qed_nvm_flash_image_validate
  61. qed_nvm_flash_cfg_write
  62. qed_nvm_flash_cfg_len
  63. qed_nvm_flash_cfg_read
  64. qed_nvm_flash
  65. qed_nvm_get_image
  66. qed_schedule_recovery_handler
  67. qed_set_coalesce
  68. qed_set_led
  69. qed_recovery_process
  70. qed_update_wol
  71. qed_update_drv_state
  72. qed_update_mac
  73. qed_update_mtu
  74. qed_read_module_eeprom
  75. qed_set_grc_config
  76. qed_get_affin_hwfn_idx
  77. qed_get_protocol_stats
  78. qed_mfw_tlv_req
  79. qed_fill_generic_tlv_data
  80. qed_mfw_fill_tlv_data

   1 /* QLogic qed 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 
  33 #include <linux/stddef.h>
  34 #include <linux/pci.h>
  35 #include <linux/kernel.h>
  36 #include <linux/slab.h>
  37 #include <linux/delay.h>
  38 #include <asm/byteorder.h>
  39 #include <linux/dma-mapping.h>
  40 #include <linux/string.h>
  41 #include <linux/module.h>
  42 #include <linux/interrupt.h>
  43 #include <linux/workqueue.h>
  44 #include <linux/ethtool.h>
  45 #include <linux/etherdevice.h>
  46 #include <linux/vmalloc.h>
  47 #include <linux/crash_dump.h>
  48 #include <linux/crc32.h>
  49 #include <linux/qed/qed_if.h>
  50 #include <linux/qed/qed_ll2_if.h>
  51 #include <net/devlink.h>
  52 
  53 #include "qed.h"
  54 #include "qed_sriov.h"
  55 #include "qed_sp.h"
  56 #include "qed_dev_api.h"
  57 #include "qed_ll2.h"
  58 #include "qed_fcoe.h"
  59 #include "qed_iscsi.h"
  60 
  61 #include "qed_mcp.h"
  62 #include "qed_reg_addr.h"
  63 #include "qed_hw.h"
  64 #include "qed_selftest.h"
  65 #include "qed_debug.h"
  66 
  67 #define QED_ROCE_QPS                    (8192)
  68 #define QED_ROCE_DPIS                   (8)
  69 #define QED_RDMA_SRQS                   QED_ROCE_QPS
  70 #define QED_NVM_CFG_GET_FLAGS           0xA
  71 #define QED_NVM_CFG_GET_PF_FLAGS        0x1A
  72 #define QED_NVM_CFG_MAX_ATTRS           50
  73 
  74 static char version[] =
  75         "QLogic FastLinQ 4xxxx Core Module qed " DRV_MODULE_VERSION "\n";
  76 
  77 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Core Module");
  78 MODULE_LICENSE("GPL");
  79 MODULE_VERSION(DRV_MODULE_VERSION);
  80 
  81 #define FW_FILE_VERSION                         \
  82         __stringify(FW_MAJOR_VERSION) "."       \
  83         __stringify(FW_MINOR_VERSION) "."       \
  84         __stringify(FW_REVISION_VERSION) "."    \
  85         __stringify(FW_ENGINEERING_VERSION)
  86 
  87 #define QED_FW_FILE_NAME        \
  88         "qed/qed_init_values_zipped-" FW_FILE_VERSION ".bin"
  89 
  90 MODULE_FIRMWARE(QED_FW_FILE_NAME);
  91 
  92 static int __init qed_init(void)
  93 {
  94         pr_info("%s", version);
  95 
  96         return 0;
  97 }
  98 
  99 static void __exit qed_cleanup(void)
 100 {
 101         pr_notice("qed_cleanup called\n");
 102 }
 103 
 104 module_init(qed_init);
 105 module_exit(qed_cleanup);
 106 
 107 /* Check if the DMA controller on the machine can properly handle the DMA
 108  * addressing required by the device.
 109 */
 110 static int qed_set_coherency_mask(struct qed_dev *cdev)
 111 {
 112         struct device *dev = &cdev->pdev->dev;
 113 
 114         if (dma_set_mask(dev, DMA_BIT_MASK(64)) == 0) {
 115                 if (dma_set_coherent_mask(dev, DMA_BIT_MASK(64)) != 0) {
 116                         DP_NOTICE(cdev,
 117                                   "Can't request 64-bit consistent allocations\n");
 118                         return -EIO;
 119                 }
 120         } else if (dma_set_mask(dev, DMA_BIT_MASK(32)) != 0) {
 121                 DP_NOTICE(cdev, "Can't request 64b/32b DMA addresses\n");
 122                 return -EIO;
 123         }
 124 
 125         return 0;
 126 }
 127 
 128 static void qed_free_pci(struct qed_dev *cdev)
 129 {
 130         struct pci_dev *pdev = cdev->pdev;
 131 
 132         if (cdev->doorbells && cdev->db_size)
 133                 iounmap(cdev->doorbells);
 134         if (cdev->regview)
 135                 iounmap(cdev->regview);
 136         if (atomic_read(&pdev->enable_cnt) == 1)
 137                 pci_release_regions(pdev);
 138 
 139         pci_disable_device(pdev);
 140 }
 141 
 142 #define PCI_REVISION_ID_ERROR_VAL       0xff
 143 
 144 /* Performs PCI initializations as well as initializing PCI-related parameters
 145  * in the device structrue. Returns 0 in case of success.
 146  */
 147 static int qed_init_pci(struct qed_dev *cdev, struct pci_dev *pdev)
 148 {
 149         u8 rev_id;
 150         int rc;
 151 
 152         cdev->pdev = pdev;
 153 
 154         rc = pci_enable_device(pdev);
 155         if (rc) {
 156                 DP_NOTICE(cdev, "Cannot enable PCI device\n");
 157                 goto err0;
 158         }
 159 
 160         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
 161                 DP_NOTICE(cdev, "No memory region found in bar #0\n");
 162                 rc = -EIO;
 163                 goto err1;
 164         }
 165 
 166         if (IS_PF(cdev) && !(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
 167                 DP_NOTICE(cdev, "No memory region found in bar #2\n");
 168                 rc = -EIO;
 169                 goto err1;
 170         }
 171 
 172         if (atomic_read(&pdev->enable_cnt) == 1) {
 173                 rc = pci_request_regions(pdev, "qed");
 174                 if (rc) {
 175                         DP_NOTICE(cdev,
 176                                   "Failed to request PCI memory resources\n");
 177                         goto err1;
 178                 }
 179                 pci_set_master(pdev);
 180                 pci_save_state(pdev);
 181         }
 182 
 183         pci_read_config_byte(pdev, PCI_REVISION_ID, &rev_id);
 184         if (rev_id == PCI_REVISION_ID_ERROR_VAL) {
 185                 DP_NOTICE(cdev,
 186                           "Detected PCI device error [rev_id 0x%x]. Probably due to prior indication. Aborting.\n",
 187                           rev_id);
 188                 rc = -ENODEV;
 189                 goto err2;
 190         }
 191         if (!pci_is_pcie(pdev)) {
 192                 DP_NOTICE(cdev, "The bus is not PCI Express\n");
 193                 rc = -EIO;
 194                 goto err2;
 195         }
 196 
 197         cdev->pci_params.pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
 198         if (IS_PF(cdev) && !cdev->pci_params.pm_cap)
 199                 DP_NOTICE(cdev, "Cannot find power management capability\n");
 200 
 201         rc = qed_set_coherency_mask(cdev);
 202         if (rc)
 203                 goto err2;
 204 
 205         cdev->pci_params.mem_start = pci_resource_start(pdev, 0);
 206         cdev->pci_params.mem_end = pci_resource_end(pdev, 0);
 207         cdev->pci_params.irq = pdev->irq;
 208 
 209         cdev->regview = pci_ioremap_bar(pdev, 0);
 210         if (!cdev->regview) {
 211                 DP_NOTICE(cdev, "Cannot map register space, aborting\n");
 212                 rc = -ENOMEM;
 213                 goto err2;
 214         }
 215 
 216         cdev->db_phys_addr = pci_resource_start(cdev->pdev, 2);
 217         cdev->db_size = pci_resource_len(cdev->pdev, 2);
 218         if (!cdev->db_size) {
 219                 if (IS_PF(cdev)) {
 220                         DP_NOTICE(cdev, "No Doorbell bar available\n");
 221                         return -EINVAL;
 222                 } else {
 223                         return 0;
 224                 }
 225         }
 226 
 227         cdev->doorbells = ioremap_wc(cdev->db_phys_addr, cdev->db_size);
 228 
 229         if (!cdev->doorbells) {
 230                 DP_NOTICE(cdev, "Cannot map doorbell space\n");
 231                 return -ENOMEM;
 232         }
 233 
 234         return 0;
 235 
 236 err2:
 237         pci_release_regions(pdev);
 238 err1:
 239         pci_disable_device(pdev);
 240 err0:
 241         return rc;
 242 }
 243 
 244 int qed_fill_dev_info(struct qed_dev *cdev,
 245                       struct qed_dev_info *dev_info)
 246 {
 247         struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
 248         struct qed_hw_info *hw_info = &p_hwfn->hw_info;
 249         struct qed_tunnel_info *tun = &cdev->tunnel;
 250         struct qed_ptt  *ptt;
 251 
 252         memset(dev_info, 0, sizeof(struct qed_dev_info));
 253 
 254         if (tun->vxlan.tun_cls == QED_TUNN_CLSS_MAC_VLAN &&
 255             tun->vxlan.b_mode_enabled)
 256                 dev_info->vxlan_enable = true;
 257 
 258         if (tun->l2_gre.b_mode_enabled && tun->ip_gre.b_mode_enabled &&
 259             tun->l2_gre.tun_cls == QED_TUNN_CLSS_MAC_VLAN &&
 260             tun->ip_gre.tun_cls == QED_TUNN_CLSS_MAC_VLAN)
 261                 dev_info->gre_enable = true;
 262 
 263         if (tun->l2_geneve.b_mode_enabled && tun->ip_geneve.b_mode_enabled &&
 264             tun->l2_geneve.tun_cls == QED_TUNN_CLSS_MAC_VLAN &&
 265             tun->ip_geneve.tun_cls == QED_TUNN_CLSS_MAC_VLAN)
 266                 dev_info->geneve_enable = true;
 267 
 268         dev_info->num_hwfns = cdev->num_hwfns;
 269         dev_info->pci_mem_start = cdev->pci_params.mem_start;
 270         dev_info->pci_mem_end = cdev->pci_params.mem_end;
 271         dev_info->pci_irq = cdev->pci_params.irq;
 272         dev_info->rdma_supported = QED_IS_RDMA_PERSONALITY(p_hwfn);
 273         dev_info->dev_type = cdev->type;
 274         ether_addr_copy(dev_info->hw_mac, hw_info->hw_mac_addr);
 275 
 276         if (IS_PF(cdev)) {
 277                 dev_info->fw_major = FW_MAJOR_VERSION;
 278                 dev_info->fw_minor = FW_MINOR_VERSION;
 279                 dev_info->fw_rev = FW_REVISION_VERSION;
 280                 dev_info->fw_eng = FW_ENGINEERING_VERSION;
 281                 dev_info->b_inter_pf_switch = test_bit(QED_MF_INTER_PF_SWITCH,
 282                                                        &cdev->mf_bits);
 283                 dev_info->tx_switching = true;
 284 
 285                 if (hw_info->b_wol_support == QED_WOL_SUPPORT_PME)
 286                         dev_info->wol_support = true;
 287 
 288                 dev_info->smart_an = qed_mcp_is_smart_an_supported(p_hwfn);
 289 
 290                 dev_info->abs_pf_id = QED_LEADING_HWFN(cdev)->abs_pf_id;
 291         } else {
 292                 qed_vf_get_fw_version(&cdev->hwfns[0], &dev_info->fw_major,
 293                                       &dev_info->fw_minor, &dev_info->fw_rev,
 294                                       &dev_info->fw_eng);
 295         }
 296 
 297         if (IS_PF(cdev)) {
 298                 ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
 299                 if (ptt) {
 300                         qed_mcp_get_mfw_ver(QED_LEADING_HWFN(cdev), ptt,
 301                                             &dev_info->mfw_rev, NULL);
 302 
 303                         qed_mcp_get_mbi_ver(QED_LEADING_HWFN(cdev), ptt,
 304                                             &dev_info->mbi_version);
 305 
 306                         qed_mcp_get_flash_size(QED_LEADING_HWFN(cdev), ptt,
 307                                                &dev_info->flash_size);
 308 
 309                         qed_ptt_release(QED_LEADING_HWFN(cdev), ptt);
 310                 }
 311         } else {
 312                 qed_mcp_get_mfw_ver(QED_LEADING_HWFN(cdev), NULL,
 313                                     &dev_info->mfw_rev, NULL);
 314         }
 315 
 316         dev_info->mtu = hw_info->mtu;
 317 
 318         return 0;
 319 }
 320 
 321 static void qed_free_cdev(struct qed_dev *cdev)
 322 {
 323         kfree((void *)cdev);
 324 }
 325 
 326 static struct qed_dev *qed_alloc_cdev(struct pci_dev *pdev)
 327 {
 328         struct qed_dev *cdev;
 329 
 330         cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
 331         if (!cdev)
 332                 return cdev;
 333 
 334         qed_init_struct(cdev);
 335 
 336         return cdev;
 337 }
 338 
 339 /* Sets the requested power state */
 340 static int qed_set_power_state(struct qed_dev *cdev, pci_power_t state)
 341 {
 342         if (!cdev)
 343                 return -ENODEV;
 344 
 345         DP_VERBOSE(cdev, NETIF_MSG_DRV, "Omitting Power state change\n");
 346         return 0;
 347 }
 348 
 349 struct qed_devlink {
 350         struct qed_dev *cdev;
 351 };
 352 
 353 enum qed_devlink_param_id {
 354         QED_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
 355         QED_DEVLINK_PARAM_ID_IWARP_CMT,
 356 };
 357 
 358 static int qed_dl_param_get(struct devlink *dl, u32 id,
 359                             struct devlink_param_gset_ctx *ctx)
 360 {
 361         struct qed_devlink *qed_dl;
 362         struct qed_dev *cdev;
 363 
 364         qed_dl = devlink_priv(dl);
 365         cdev = qed_dl->cdev;
 366         ctx->val.vbool = cdev->iwarp_cmt;
 367 
 368         return 0;
 369 }
 370 
 371 static int qed_dl_param_set(struct devlink *dl, u32 id,
 372                             struct devlink_param_gset_ctx *ctx)
 373 {
 374         struct qed_devlink *qed_dl;
 375         struct qed_dev *cdev;
 376 
 377         qed_dl = devlink_priv(dl);
 378         cdev = qed_dl->cdev;
 379         cdev->iwarp_cmt = ctx->val.vbool;
 380 
 381         return 0;
 382 }
 383 
 384 static const struct devlink_param qed_devlink_params[] = {
 385         DEVLINK_PARAM_DRIVER(QED_DEVLINK_PARAM_ID_IWARP_CMT,
 386                              "iwarp_cmt", DEVLINK_PARAM_TYPE_BOOL,
 387                              BIT(DEVLINK_PARAM_CMODE_RUNTIME),
 388                              qed_dl_param_get, qed_dl_param_set, NULL),
 389 };
 390 
 391 static const struct devlink_ops qed_dl_ops;
 392 
 393 static int qed_devlink_register(struct qed_dev *cdev)
 394 {
 395         union devlink_param_value value;
 396         struct qed_devlink *qed_dl;
 397         struct devlink *dl;
 398         int rc;
 399 
 400         dl = devlink_alloc(&qed_dl_ops, sizeof(*qed_dl));
 401         if (!dl)
 402                 return -ENOMEM;
 403 
 404         qed_dl = devlink_priv(dl);
 405 
 406         cdev->dl = dl;
 407         qed_dl->cdev = cdev;
 408 
 409         rc = devlink_register(dl, &cdev->pdev->dev);
 410         if (rc)
 411                 goto err_free;
 412 
 413         rc = devlink_params_register(dl, qed_devlink_params,
 414                                      ARRAY_SIZE(qed_devlink_params));
 415         if (rc)
 416                 goto err_unregister;
 417 
 418         value.vbool = false;
 419         devlink_param_driverinit_value_set(dl,
 420                                            QED_DEVLINK_PARAM_ID_IWARP_CMT,
 421                                            value);
 422 
 423         devlink_params_publish(dl);
 424         cdev->iwarp_cmt = false;
 425 
 426         return 0;
 427 
 428 err_unregister:
 429         devlink_unregister(dl);
 430 
 431 err_free:
 432         cdev->dl = NULL;
 433         devlink_free(dl);
 434 
 435         return rc;
 436 }
 437 
 438 static void qed_devlink_unregister(struct qed_dev *cdev)
 439 {
 440         if (!cdev->dl)
 441                 return;
 442 
 443         devlink_params_unregister(cdev->dl, qed_devlink_params,
 444                                   ARRAY_SIZE(qed_devlink_params));
 445 
 446         devlink_unregister(cdev->dl);
 447         devlink_free(cdev->dl);
 448 }
 449 
 450 /* probing */
 451 static struct qed_dev *qed_probe(struct pci_dev *pdev,
 452                                  struct qed_probe_params *params)
 453 {
 454         struct qed_dev *cdev;
 455         int rc;
 456 
 457         cdev = qed_alloc_cdev(pdev);
 458         if (!cdev)
 459                 goto err0;
 460 
 461         cdev->drv_type = DRV_ID_DRV_TYPE_LINUX;
 462         cdev->protocol = params->protocol;
 463 
 464         if (params->is_vf)
 465                 cdev->b_is_vf = true;
 466 
 467         qed_init_dp(cdev, params->dp_module, params->dp_level);
 468 
 469         cdev->recov_in_prog = params->recov_in_prog;
 470 
 471         rc = qed_init_pci(cdev, pdev);
 472         if (rc) {
 473                 DP_ERR(cdev, "init pci failed\n");
 474                 goto err1;
 475         }
 476         DP_INFO(cdev, "PCI init completed successfully\n");
 477 
 478         rc = qed_devlink_register(cdev);
 479         if (rc) {
 480                 DP_INFO(cdev, "Failed to register devlink.\n");
 481                 goto err2;
 482         }
 483 
 484         rc = qed_hw_prepare(cdev, QED_PCI_DEFAULT);
 485         if (rc) {
 486                 DP_ERR(cdev, "hw prepare failed\n");
 487                 goto err2;
 488         }
 489 
 490         DP_INFO(cdev, "qed_probe completed successfully\n");
 491 
 492         return cdev;
 493 
 494 err2:
 495         qed_free_pci(cdev);
 496 err1:
 497         qed_free_cdev(cdev);
 498 err0:
 499         return NULL;
 500 }
 501 
 502 static void qed_remove(struct qed_dev *cdev)
 503 {
 504         if (!cdev)
 505                 return;
 506 
 507         qed_hw_remove(cdev);
 508 
 509         qed_free_pci(cdev);
 510 
 511         qed_set_power_state(cdev, PCI_D3hot);
 512 
 513         qed_devlink_unregister(cdev);
 514 
 515         qed_free_cdev(cdev);
 516 }
 517 
 518 static void qed_disable_msix(struct qed_dev *cdev)
 519 {
 520         if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
 521                 pci_disable_msix(cdev->pdev);
 522                 kfree(cdev->int_params.msix_table);
 523         } else if (cdev->int_params.out.int_mode == QED_INT_MODE_MSI) {
 524                 pci_disable_msi(cdev->pdev);
 525         }
 526 
 527         memset(&cdev->int_params.out, 0, sizeof(struct qed_int_param));
 528 }
 529 
 530 static int qed_enable_msix(struct qed_dev *cdev,
 531                            struct qed_int_params *int_params)
 532 {
 533         int i, rc, cnt;
 534 
 535         cnt = int_params->in.num_vectors;
 536 
 537         for (i = 0; i < cnt; i++)
 538                 int_params->msix_table[i].entry = i;
 539 
 540         rc = pci_enable_msix_range(cdev->pdev, int_params->msix_table,
 541                                    int_params->in.min_msix_cnt, cnt);
 542         if (rc < cnt && rc >= int_params->in.min_msix_cnt &&
 543             (rc % cdev->num_hwfns)) {
 544                 pci_disable_msix(cdev->pdev);
 545 
 546                 /* If fastpath is initialized, we need at least one interrupt
 547                  * per hwfn [and the slow path interrupts]. New requested number
 548                  * should be a multiple of the number of hwfns.
 549                  */
 550                 cnt = (rc / cdev->num_hwfns) * cdev->num_hwfns;
 551                 DP_NOTICE(cdev,
 552                           "Trying to enable MSI-X with less vectors (%d out of %d)\n",
 553                           cnt, int_params->in.num_vectors);
 554                 rc = pci_enable_msix_exact(cdev->pdev, int_params->msix_table,
 555                                            cnt);
 556                 if (!rc)
 557                         rc = cnt;
 558         }
 559 
 560         if (rc > 0) {
 561                 /* MSI-x configuration was achieved */
 562                 int_params->out.int_mode = QED_INT_MODE_MSIX;
 563                 int_params->out.num_vectors = rc;
 564                 rc = 0;
 565         } else {
 566                 DP_NOTICE(cdev,
 567                           "Failed to enable MSI-X [Requested %d vectors][rc %d]\n",
 568                           cnt, rc);
 569         }
 570 
 571         return rc;
 572 }
 573 
 574 /* This function outputs the int mode and the number of enabled msix vector */
 575 static int qed_set_int_mode(struct qed_dev *cdev, bool force_mode)
 576 {
 577         struct qed_int_params *int_params = &cdev->int_params;
 578         struct msix_entry *tbl;
 579         int rc = 0, cnt;
 580 
 581         switch (int_params->in.int_mode) {
 582         case QED_INT_MODE_MSIX:
 583                 /* Allocate MSIX table */
 584                 cnt = int_params->in.num_vectors;
 585                 int_params->msix_table = kcalloc(cnt, sizeof(*tbl), GFP_KERNEL);
 586                 if (!int_params->msix_table) {
 587                         rc = -ENOMEM;
 588                         goto out;
 589                 }
 590 
 591                 /* Enable MSIX */
 592                 rc = qed_enable_msix(cdev, int_params);
 593                 if (!rc)
 594                         goto out;
 595 
 596                 DP_NOTICE(cdev, "Failed to enable MSI-X\n");
 597                 kfree(int_params->msix_table);
 598                 if (force_mode)
 599                         goto out;
 600                 /* Fallthrough */
 601 
 602         case QED_INT_MODE_MSI:
 603                 if (cdev->num_hwfns == 1) {
 604                         rc = pci_enable_msi(cdev->pdev);
 605                         if (!rc) {
 606                                 int_params->out.int_mode = QED_INT_MODE_MSI;
 607                                 goto out;
 608                         }
 609 
 610                         DP_NOTICE(cdev, "Failed to enable MSI\n");
 611                         if (force_mode)
 612                                 goto out;
 613                 }
 614                 /* Fallthrough */
 615 
 616         case QED_INT_MODE_INTA:
 617                         int_params->out.int_mode = QED_INT_MODE_INTA;
 618                         rc = 0;
 619                         goto out;
 620         default:
 621                 DP_NOTICE(cdev, "Unknown int_mode value %d\n",
 622                           int_params->in.int_mode);
 623                 rc = -EINVAL;
 624         }
 625 
 626 out:
 627         if (!rc)
 628                 DP_INFO(cdev, "Using %s interrupts\n",
 629                         int_params->out.int_mode == QED_INT_MODE_INTA ?
 630                         "INTa" : int_params->out.int_mode == QED_INT_MODE_MSI ?
 631                         "MSI" : "MSIX");
 632         cdev->int_coalescing_mode = QED_COAL_MODE_ENABLE;
 633 
 634         return rc;
 635 }
 636 
 637 static void qed_simd_handler_config(struct qed_dev *cdev, void *token,
 638                                     int index, void(*handler)(void *))
 639 {
 640         struct qed_hwfn *hwfn = &cdev->hwfns[index % cdev->num_hwfns];
 641         int relative_idx = index / cdev->num_hwfns;
 642 
 643         hwfn->simd_proto_handler[relative_idx].func = handler;
 644         hwfn->simd_proto_handler[relative_idx].token = token;
 645 }
 646 
 647 static void qed_simd_handler_clean(struct qed_dev *cdev, int index)
 648 {
 649         struct qed_hwfn *hwfn = &cdev->hwfns[index % cdev->num_hwfns];
 650         int relative_idx = index / cdev->num_hwfns;
 651 
 652         memset(&hwfn->simd_proto_handler[relative_idx], 0,
 653                sizeof(struct qed_simd_fp_handler));
 654 }
 655 
 656 static irqreturn_t qed_msix_sp_int(int irq, void *tasklet)
 657 {
 658         tasklet_schedule((struct tasklet_struct *)tasklet);
 659         return IRQ_HANDLED;
 660 }
 661 
 662 static irqreturn_t qed_single_int(int irq, void *dev_instance)
 663 {
 664         struct qed_dev *cdev = (struct qed_dev *)dev_instance;
 665         struct qed_hwfn *hwfn;
 666         irqreturn_t rc = IRQ_NONE;
 667         u64 status;
 668         int i, j;
 669 
 670         for (i = 0; i < cdev->num_hwfns; i++) {
 671                 status = qed_int_igu_read_sisr_reg(&cdev->hwfns[i]);
 672 
 673                 if (!status)
 674                         continue;
 675 
 676                 hwfn = &cdev->hwfns[i];
 677 
 678                 /* Slowpath interrupt */
 679                 if (unlikely(status & 0x1)) {
 680                         tasklet_schedule(hwfn->sp_dpc);
 681                         status &= ~0x1;
 682                         rc = IRQ_HANDLED;
 683                 }
 684 
 685                 /* Fastpath interrupts */
 686                 for (j = 0; j < 64; j++) {
 687                         if ((0x2ULL << j) & status) {
 688                                 struct qed_simd_fp_handler *p_handler =
 689                                         &hwfn->simd_proto_handler[j];
 690 
 691                                 if (p_handler->func)
 692                                         p_handler->func(p_handler->token);
 693                                 else
 694                                         DP_NOTICE(hwfn,
 695                                                   "Not calling fastpath handler as it is NULL [handler #%d, status 0x%llx]\n",
 696                                                   j, status);
 697 
 698                                 status &= ~(0x2ULL << j);
 699                                 rc = IRQ_HANDLED;
 700                         }
 701                 }
 702 
 703                 if (unlikely(status))
 704                         DP_VERBOSE(hwfn, NETIF_MSG_INTR,
 705                                    "got an unknown interrupt status 0x%llx\n",
 706                                    status);
 707         }
 708 
 709         return rc;
 710 }
 711 
 712 int qed_slowpath_irq_req(struct qed_hwfn *hwfn)
 713 {
 714         struct qed_dev *cdev = hwfn->cdev;
 715         u32 int_mode;
 716         int rc = 0;
 717         u8 id;
 718 
 719         int_mode = cdev->int_params.out.int_mode;
 720         if (int_mode == QED_INT_MODE_MSIX) {
 721                 id = hwfn->my_id;
 722                 snprintf(hwfn->name, NAME_SIZE, "sp-%d-%02x:%02x.%02x",
 723                          id, cdev->pdev->bus->number,
 724                          PCI_SLOT(cdev->pdev->devfn), hwfn->abs_pf_id);
 725                 rc = request_irq(cdev->int_params.msix_table[id].vector,
 726                                  qed_msix_sp_int, 0, hwfn->name, hwfn->sp_dpc);
 727         } else {
 728                 unsigned long flags = 0;
 729 
 730                 snprintf(cdev->name, NAME_SIZE, "%02x:%02x.%02x",
 731                          cdev->pdev->bus->number, PCI_SLOT(cdev->pdev->devfn),
 732                          PCI_FUNC(cdev->pdev->devfn));
 733 
 734                 if (cdev->int_params.out.int_mode == QED_INT_MODE_INTA)
 735                         flags |= IRQF_SHARED;
 736 
 737                 rc = request_irq(cdev->pdev->irq, qed_single_int,
 738                                  flags, cdev->name, cdev);
 739         }
 740 
 741         if (rc)
 742                 DP_NOTICE(cdev, "request_irq failed, rc = %d\n", rc);
 743         else
 744                 DP_VERBOSE(hwfn, (NETIF_MSG_INTR | QED_MSG_SP),
 745                            "Requested slowpath %s\n",
 746                            (int_mode == QED_INT_MODE_MSIX) ? "MSI-X" : "IRQ");
 747 
 748         return rc;
 749 }
 750 
 751 static void qed_slowpath_tasklet_flush(struct qed_hwfn *p_hwfn)
 752 {
 753         /* Calling the disable function will make sure that any
 754          * currently-running function is completed. The following call to the
 755          * enable function makes this sequence a flush-like operation.
 756          */
 757         if (p_hwfn->b_sp_dpc_enabled) {
 758                 tasklet_disable(p_hwfn->sp_dpc);
 759                 tasklet_enable(p_hwfn->sp_dpc);
 760         }
 761 }
 762 
 763 void qed_slowpath_irq_sync(struct qed_hwfn *p_hwfn)
 764 {
 765         struct qed_dev *cdev = p_hwfn->cdev;
 766         u8 id = p_hwfn->my_id;
 767         u32 int_mode;
 768 
 769         int_mode = cdev->int_params.out.int_mode;
 770         if (int_mode == QED_INT_MODE_MSIX)
 771                 synchronize_irq(cdev->int_params.msix_table[id].vector);
 772         else
 773                 synchronize_irq(cdev->pdev->irq);
 774 
 775         qed_slowpath_tasklet_flush(p_hwfn);
 776 }
 777 
 778 static void qed_slowpath_irq_free(struct qed_dev *cdev)
 779 {
 780         int i;
 781 
 782         if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
 783                 for_each_hwfn(cdev, i) {
 784                         if (!cdev->hwfns[i].b_int_requested)
 785                                 break;
 786                         synchronize_irq(cdev->int_params.msix_table[i].vector);
 787                         free_irq(cdev->int_params.msix_table[i].vector,
 788                                  cdev->hwfns[i].sp_dpc);
 789                 }
 790         } else {
 791                 if (QED_LEADING_HWFN(cdev)->b_int_requested)
 792                         free_irq(cdev->pdev->irq, cdev);
 793         }
 794         qed_int_disable_post_isr_release(cdev);
 795 }
 796 
 797 static int qed_nic_stop(struct qed_dev *cdev)
 798 {
 799         int i, rc;
 800 
 801         rc = qed_hw_stop(cdev);
 802 
 803         for (i = 0; i < cdev->num_hwfns; i++) {
 804                 struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
 805 
 806                 if (p_hwfn->b_sp_dpc_enabled) {
 807                         tasklet_disable(p_hwfn->sp_dpc);
 808                         p_hwfn->b_sp_dpc_enabled = false;
 809                         DP_VERBOSE(cdev, NETIF_MSG_IFDOWN,
 810                                    "Disabled sp tasklet [hwfn %d] at %p\n",
 811                                    i, p_hwfn->sp_dpc);
 812                 }
 813         }
 814 
 815         qed_dbg_pf_exit(cdev);
 816 
 817         return rc;
 818 }
 819 
 820 static int qed_nic_setup(struct qed_dev *cdev)
 821 {
 822         int rc, i;
 823 
 824         /* Determine if interface is going to require LL2 */
 825         if (QED_LEADING_HWFN(cdev)->hw_info.personality != QED_PCI_ETH) {
 826                 for (i = 0; i < cdev->num_hwfns; i++) {
 827                         struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
 828 
 829                         p_hwfn->using_ll2 = true;
 830                 }
 831         }
 832 
 833         rc = qed_resc_alloc(cdev);
 834         if (rc)
 835                 return rc;
 836 
 837         DP_INFO(cdev, "Allocated qed resources\n");
 838 
 839         qed_resc_setup(cdev);
 840 
 841         return rc;
 842 }
 843 
 844 static int qed_set_int_fp(struct qed_dev *cdev, u16 cnt)
 845 {
 846         int limit = 0;
 847 
 848         /* Mark the fastpath as free/used */
 849         cdev->int_params.fp_initialized = cnt ? true : false;
 850 
 851         if (cdev->int_params.out.int_mode != QED_INT_MODE_MSIX)
 852                 limit = cdev->num_hwfns * 63;
 853         else if (cdev->int_params.fp_msix_cnt)
 854                 limit = cdev->int_params.fp_msix_cnt;
 855 
 856         if (!limit)
 857                 return -ENOMEM;
 858 
 859         return min_t(int, cnt, limit);
 860 }
 861 
 862 static int qed_get_int_fp(struct qed_dev *cdev, struct qed_int_info *info)
 863 {
 864         memset(info, 0, sizeof(struct qed_int_info));
 865 
 866         if (!cdev->int_params.fp_initialized) {
 867                 DP_INFO(cdev,
 868                         "Protocol driver requested interrupt information, but its support is not yet configured\n");
 869                 return -EINVAL;
 870         }
 871 
 872         /* Need to expose only MSI-X information; Single IRQ is handled solely
 873          * by qed.
 874          */
 875         if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
 876                 int msix_base = cdev->int_params.fp_msix_base;
 877 
 878                 info->msix_cnt = cdev->int_params.fp_msix_cnt;
 879                 info->msix = &cdev->int_params.msix_table[msix_base];
 880         }
 881 
 882         return 0;
 883 }
 884 
 885 static int qed_slowpath_setup_int(struct qed_dev *cdev,
 886                                   enum qed_int_mode int_mode)
 887 {
 888         struct qed_sb_cnt_info sb_cnt_info;
 889         int num_l2_queues = 0;
 890         int rc;
 891         int i;
 892 
 893         if ((int_mode == QED_INT_MODE_MSI) && (cdev->num_hwfns > 1)) {
 894                 DP_NOTICE(cdev, "MSI mode is not supported for CMT devices\n");
 895                 return -EINVAL;
 896         }
 897 
 898         memset(&cdev->int_params, 0, sizeof(struct qed_int_params));
 899         cdev->int_params.in.int_mode = int_mode;
 900         for_each_hwfn(cdev, i) {
 901                 memset(&sb_cnt_info, 0, sizeof(sb_cnt_info));
 902                 qed_int_get_num_sbs(&cdev->hwfns[i], &sb_cnt_info);
 903                 cdev->int_params.in.num_vectors += sb_cnt_info.cnt;
 904                 cdev->int_params.in.num_vectors++; /* slowpath */
 905         }
 906 
 907         /* We want a minimum of one slowpath and one fastpath vector per hwfn */
 908         cdev->int_params.in.min_msix_cnt = cdev->num_hwfns * 2;
 909 
 910         if (is_kdump_kernel()) {
 911                 DP_INFO(cdev,
 912                         "Kdump kernel: Limit the max number of requested MSI-X vectors to %hd\n",
 913                         cdev->int_params.in.min_msix_cnt);
 914                 cdev->int_params.in.num_vectors =
 915                         cdev->int_params.in.min_msix_cnt;
 916         }
 917 
 918         rc = qed_set_int_mode(cdev, false);
 919         if (rc)  {
 920                 DP_ERR(cdev, "qed_slowpath_setup_int ERR\n");
 921                 return rc;
 922         }
 923 
 924         cdev->int_params.fp_msix_base = cdev->num_hwfns;
 925         cdev->int_params.fp_msix_cnt = cdev->int_params.out.num_vectors -
 926                                        cdev->num_hwfns;
 927 
 928         if (!IS_ENABLED(CONFIG_QED_RDMA) ||
 929             !QED_IS_RDMA_PERSONALITY(QED_LEADING_HWFN(cdev)))
 930                 return 0;
 931 
 932         for_each_hwfn(cdev, i)
 933                 num_l2_queues += FEAT_NUM(&cdev->hwfns[i], QED_PF_L2_QUE);
 934 
 935         DP_VERBOSE(cdev, QED_MSG_RDMA,
 936                    "cdev->int_params.fp_msix_cnt=%d num_l2_queues=%d\n",
 937                    cdev->int_params.fp_msix_cnt, num_l2_queues);
 938 
 939         if (cdev->int_params.fp_msix_cnt > num_l2_queues) {
 940                 cdev->int_params.rdma_msix_cnt =
 941                         (cdev->int_params.fp_msix_cnt - num_l2_queues)
 942                         / cdev->num_hwfns;
 943                 cdev->int_params.rdma_msix_base =
 944                         cdev->int_params.fp_msix_base + num_l2_queues;
 945                 cdev->int_params.fp_msix_cnt = num_l2_queues;
 946         } else {
 947                 cdev->int_params.rdma_msix_cnt = 0;
 948         }
 949 
 950         DP_VERBOSE(cdev, QED_MSG_RDMA, "roce_msix_cnt=%d roce_msix_base=%d\n",
 951                    cdev->int_params.rdma_msix_cnt,
 952                    cdev->int_params.rdma_msix_base);
 953 
 954         return 0;
 955 }
 956 
 957 static int qed_slowpath_vf_setup_int(struct qed_dev *cdev)
 958 {
 959         int rc;
 960 
 961         memset(&cdev->int_params, 0, sizeof(struct qed_int_params));
 962         cdev->int_params.in.int_mode = QED_INT_MODE_MSIX;
 963 
 964         qed_vf_get_num_rxqs(QED_LEADING_HWFN(cdev),
 965                             &cdev->int_params.in.num_vectors);
 966         if (cdev->num_hwfns > 1) {
 967                 u8 vectors = 0;
 968 
 969                 qed_vf_get_num_rxqs(&cdev->hwfns[1], &vectors);
 970                 cdev->int_params.in.num_vectors += vectors;
 971         }
 972 
 973         /* We want a minimum of one fastpath vector per vf hwfn */
 974         cdev->int_params.in.min_msix_cnt = cdev->num_hwfns;
 975 
 976         rc = qed_set_int_mode(cdev, true);
 977         if (rc)
 978                 return rc;
 979 
 980         cdev->int_params.fp_msix_base = 0;
 981         cdev->int_params.fp_msix_cnt = cdev->int_params.out.num_vectors;
 982 
 983         return 0;
 984 }
 985 
 986 u32 qed_unzip_data(struct qed_hwfn *p_hwfn, u32 input_len,
 987                    u8 *input_buf, u32 max_size, u8 *unzip_buf)
 988 {
 989         int rc;
 990 
 991         p_hwfn->stream->next_in = input_buf;
 992         p_hwfn->stream->avail_in = input_len;
 993         p_hwfn->stream->next_out = unzip_buf;
 994         p_hwfn->stream->avail_out = max_size;
 995 
 996         rc = zlib_inflateInit2(p_hwfn->stream, MAX_WBITS);
 997 
 998         if (rc != Z_OK) {
 999                 DP_VERBOSE(p_hwfn, NETIF_MSG_DRV, "zlib init failed, rc = %d\n",
1000                            rc);
1001                 return 0;
1002         }
1003 
1004         rc = zlib_inflate(p_hwfn->stream, Z_FINISH);
1005         zlib_inflateEnd(p_hwfn->stream);
1006 
1007         if (rc != Z_OK && rc != Z_STREAM_END) {
1008                 DP_VERBOSE(p_hwfn, NETIF_MSG_DRV, "FW unzip error: %s, rc=%d\n",
1009                            p_hwfn->stream->msg, rc);
1010                 return 0;
1011         }
1012 
1013         return p_hwfn->stream->total_out / 4;
1014 }
1015 
1016 static int qed_alloc_stream_mem(struct qed_dev *cdev)
1017 {
1018         int i;
1019         void *workspace;
1020 
1021         for_each_hwfn(cdev, i) {
1022                 struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1023 
1024                 p_hwfn->stream = kzalloc(sizeof(*p_hwfn->stream), GFP_KERNEL);
1025                 if (!p_hwfn->stream)
1026                         return -ENOMEM;
1027 
1028                 workspace = vzalloc(zlib_inflate_workspacesize());
1029                 if (!workspace)
1030                         return -ENOMEM;
1031                 p_hwfn->stream->workspace = workspace;
1032         }
1033 
1034         return 0;
1035 }
1036 
1037 static void qed_free_stream_mem(struct qed_dev *cdev)
1038 {
1039         int i;
1040 
1041         for_each_hwfn(cdev, i) {
1042                 struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1043 
1044                 if (!p_hwfn->stream)
1045                         return;
1046 
1047                 vfree(p_hwfn->stream->workspace);
1048                 kfree(p_hwfn->stream);
1049         }
1050 }
1051 
1052 static void qed_update_pf_params(struct qed_dev *cdev,
1053                                  struct qed_pf_params *params)
1054 {
1055         int i;
1056 
1057         if (IS_ENABLED(CONFIG_QED_RDMA)) {
1058                 params->rdma_pf_params.num_qps = QED_ROCE_QPS;
1059                 params->rdma_pf_params.min_dpis = QED_ROCE_DPIS;
1060                 params->rdma_pf_params.num_srqs = QED_RDMA_SRQS;
1061                 /* divide by 3 the MRs to avoid MF ILT overflow */
1062                 params->rdma_pf_params.gl_pi = QED_ROCE_PROTOCOL_INDEX;
1063         }
1064 
1065         if (cdev->num_hwfns > 1 || IS_VF(cdev))
1066                 params->eth_pf_params.num_arfs_filters = 0;
1067 
1068         /* In case we might support RDMA, don't allow qede to be greedy
1069          * with the L2 contexts. Allow for 64 queues [rx, tx cos, xdp]
1070          * per hwfn.
1071          */
1072         if (QED_IS_RDMA_PERSONALITY(QED_LEADING_HWFN(cdev))) {
1073                 u16 *num_cons;
1074 
1075                 num_cons = &params->eth_pf_params.num_cons;
1076                 *num_cons = min_t(u16, *num_cons, QED_MAX_L2_CONS);
1077         }
1078 
1079         for (i = 0; i < cdev->num_hwfns; i++) {
1080                 struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1081 
1082                 p_hwfn->pf_params = *params;
1083         }
1084 }
1085 
1086 #define QED_PERIODIC_DB_REC_COUNT               10
1087 #define QED_PERIODIC_DB_REC_INTERVAL_MS         100
1088 #define QED_PERIODIC_DB_REC_INTERVAL \
1089         msecs_to_jiffies(QED_PERIODIC_DB_REC_INTERVAL_MS)
1090 
1091 static int qed_slowpath_delayed_work(struct qed_hwfn *hwfn,
1092                                      enum qed_slowpath_wq_flag wq_flag,
1093                                      unsigned long delay)
1094 {
1095         if (!hwfn->slowpath_wq_active)
1096                 return -EINVAL;
1097 
1098         /* Memory barrier for setting atomic bit */
1099         smp_mb__before_atomic();
1100         set_bit(wq_flag, &hwfn->slowpath_task_flags);
1101         smp_mb__after_atomic();
1102         queue_delayed_work(hwfn->slowpath_wq, &hwfn->slowpath_task, delay);
1103 
1104         return 0;
1105 }
1106 
1107 void qed_periodic_db_rec_start(struct qed_hwfn *p_hwfn)
1108 {
1109         /* Reset periodic Doorbell Recovery counter */
1110         p_hwfn->periodic_db_rec_count = QED_PERIODIC_DB_REC_COUNT;
1111 
1112         /* Don't schedule periodic Doorbell Recovery if already scheduled */
1113         if (test_bit(QED_SLOWPATH_PERIODIC_DB_REC,
1114                      &p_hwfn->slowpath_task_flags))
1115                 return;
1116 
1117         qed_slowpath_delayed_work(p_hwfn, QED_SLOWPATH_PERIODIC_DB_REC,
1118                                   QED_PERIODIC_DB_REC_INTERVAL);
1119 }
1120 
1121 static void qed_slowpath_wq_stop(struct qed_dev *cdev)
1122 {
1123         int i;
1124 
1125         if (IS_VF(cdev))
1126                 return;
1127 
1128         for_each_hwfn(cdev, i) {
1129                 if (!cdev->hwfns[i].slowpath_wq)
1130                         continue;
1131 
1132                 /* Stop queuing new delayed works */
1133                 cdev->hwfns[i].slowpath_wq_active = false;
1134 
1135                 cancel_delayed_work(&cdev->hwfns[i].slowpath_task);
1136                 destroy_workqueue(cdev->hwfns[i].slowpath_wq);
1137         }
1138 }
1139 
1140 static void qed_slowpath_task(struct work_struct *work)
1141 {
1142         struct qed_hwfn *hwfn = container_of(work, struct qed_hwfn,
1143                                              slowpath_task.work);
1144         struct qed_ptt *ptt = qed_ptt_acquire(hwfn);
1145 
1146         if (!ptt) {
1147                 if (hwfn->slowpath_wq_active)
1148                         queue_delayed_work(hwfn->slowpath_wq,
1149                                            &hwfn->slowpath_task, 0);
1150 
1151                 return;
1152         }
1153 
1154         if (test_and_clear_bit(QED_SLOWPATH_MFW_TLV_REQ,
1155                                &hwfn->slowpath_task_flags))
1156                 qed_mfw_process_tlv_req(hwfn, ptt);
1157 
1158         if (test_and_clear_bit(QED_SLOWPATH_PERIODIC_DB_REC,
1159                                &hwfn->slowpath_task_flags)) {
1160                 qed_db_rec_handler(hwfn, ptt);
1161                 if (hwfn->periodic_db_rec_count--)
1162                         qed_slowpath_delayed_work(hwfn,
1163                                                   QED_SLOWPATH_PERIODIC_DB_REC,
1164                                                   QED_PERIODIC_DB_REC_INTERVAL);
1165         }
1166 
1167         qed_ptt_release(hwfn, ptt);
1168 }
1169 
1170 static int qed_slowpath_wq_start(struct qed_dev *cdev)
1171 {
1172         struct qed_hwfn *hwfn;
1173         char name[NAME_SIZE];
1174         int i;
1175 
1176         if (IS_VF(cdev))
1177                 return 0;
1178 
1179         for_each_hwfn(cdev, i) {
1180                 hwfn = &cdev->hwfns[i];
1181 
1182                 snprintf(name, NAME_SIZE, "slowpath-%02x:%02x.%02x",
1183                          cdev->pdev->bus->number,
1184                          PCI_SLOT(cdev->pdev->devfn), hwfn->abs_pf_id);
1185 
1186                 hwfn->slowpath_wq = alloc_workqueue(name, 0, 0);
1187                 if (!hwfn->slowpath_wq) {
1188                         DP_NOTICE(hwfn, "Cannot create slowpath workqueue\n");
1189                         return -ENOMEM;
1190                 }
1191 
1192                 INIT_DELAYED_WORK(&hwfn->slowpath_task, qed_slowpath_task);
1193                 hwfn->slowpath_wq_active = true;
1194         }
1195 
1196         return 0;
1197 }
1198 
1199 static int qed_slowpath_start(struct qed_dev *cdev,
1200                               struct qed_slowpath_params *params)
1201 {
1202         struct qed_drv_load_params drv_load_params;
1203         struct qed_hw_init_params hw_init_params;
1204         struct qed_mcp_drv_version drv_version;
1205         struct qed_tunnel_info tunn_info;
1206         const u8 *data = NULL;
1207         struct qed_hwfn *hwfn;
1208         struct qed_ptt *p_ptt;
1209         int rc = -EINVAL;
1210 
1211         if (qed_iov_wq_start(cdev))
1212                 goto err;
1213 
1214         if (qed_slowpath_wq_start(cdev))
1215                 goto err;
1216 
1217         if (IS_PF(cdev)) {
1218                 rc = request_firmware(&cdev->firmware, QED_FW_FILE_NAME,
1219                                       &cdev->pdev->dev);
1220                 if (rc) {
1221                         DP_NOTICE(cdev,
1222                                   "Failed to find fw file - /lib/firmware/%s\n",
1223                                   QED_FW_FILE_NAME);
1224                         goto err;
1225                 }
1226 
1227                 if (cdev->num_hwfns == 1) {
1228                         p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
1229                         if (p_ptt) {
1230                                 QED_LEADING_HWFN(cdev)->p_arfs_ptt = p_ptt;
1231                         } else {
1232                                 DP_NOTICE(cdev,
1233                                           "Failed to acquire PTT for aRFS\n");
1234                                 goto err;
1235                         }
1236                 }
1237         }
1238 
1239         cdev->rx_coalesce_usecs = QED_DEFAULT_RX_USECS;
1240         rc = qed_nic_setup(cdev);
1241         if (rc)
1242                 goto err;
1243 
1244         if (IS_PF(cdev))
1245                 rc = qed_slowpath_setup_int(cdev, params->int_mode);
1246         else
1247                 rc = qed_slowpath_vf_setup_int(cdev);
1248         if (rc)
1249                 goto err1;
1250 
1251         if (IS_PF(cdev)) {
1252                 /* Allocate stream for unzipping */
1253                 rc = qed_alloc_stream_mem(cdev);
1254                 if (rc)
1255                         goto err2;
1256 
1257                 /* First Dword used to differentiate between various sources */
1258                 data = cdev->firmware->data + sizeof(u32);
1259 
1260                 qed_dbg_pf_init(cdev);
1261         }
1262 
1263         /* Start the slowpath */
1264         memset(&hw_init_params, 0, sizeof(hw_init_params));
1265         memset(&tunn_info, 0, sizeof(tunn_info));
1266         tunn_info.vxlan.b_mode_enabled = true;
1267         tunn_info.l2_gre.b_mode_enabled = true;
1268         tunn_info.ip_gre.b_mode_enabled = true;
1269         tunn_info.l2_geneve.b_mode_enabled = true;
1270         tunn_info.ip_geneve.b_mode_enabled = true;
1271         tunn_info.vxlan.tun_cls = QED_TUNN_CLSS_MAC_VLAN;
1272         tunn_info.l2_gre.tun_cls = QED_TUNN_CLSS_MAC_VLAN;
1273         tunn_info.ip_gre.tun_cls = QED_TUNN_CLSS_MAC_VLAN;
1274         tunn_info.l2_geneve.tun_cls = QED_TUNN_CLSS_MAC_VLAN;
1275         tunn_info.ip_geneve.tun_cls = QED_TUNN_CLSS_MAC_VLAN;
1276         hw_init_params.p_tunn = &tunn_info;
1277         hw_init_params.b_hw_start = true;
1278         hw_init_params.int_mode = cdev->int_params.out.int_mode;
1279         hw_init_params.allow_npar_tx_switch = true;
1280         hw_init_params.bin_fw_data = data;
1281 
1282         memset(&drv_load_params, 0, sizeof(drv_load_params));
1283         drv_load_params.is_crash_kernel = is_kdump_kernel();
1284         drv_load_params.mfw_timeout_val = QED_LOAD_REQ_LOCK_TO_DEFAULT;
1285         drv_load_params.avoid_eng_reset = false;
1286         drv_load_params.override_force_load = QED_OVERRIDE_FORCE_LOAD_NONE;
1287         hw_init_params.p_drv_load_params = &drv_load_params;
1288 
1289         rc = qed_hw_init(cdev, &hw_init_params);
1290         if (rc)
1291                 goto err2;
1292 
1293         DP_INFO(cdev,
1294                 "HW initialization and function start completed successfully\n");
1295 
1296         if (IS_PF(cdev)) {
1297                 cdev->tunn_feature_mask = (BIT(QED_MODE_VXLAN_TUNN) |
1298                                            BIT(QED_MODE_L2GENEVE_TUNN) |
1299                                            BIT(QED_MODE_IPGENEVE_TUNN) |
1300                                            BIT(QED_MODE_L2GRE_TUNN) |
1301                                            BIT(QED_MODE_IPGRE_TUNN));
1302         }
1303 
1304         /* Allocate LL2 interface if needed */
1305         if (QED_LEADING_HWFN(cdev)->using_ll2) {
1306                 rc = qed_ll2_alloc_if(cdev);
1307                 if (rc)
1308                         goto err3;
1309         }
1310         if (IS_PF(cdev)) {
1311                 hwfn = QED_LEADING_HWFN(cdev);
1312                 drv_version.version = (params->drv_major << 24) |
1313                                       (params->drv_minor << 16) |
1314                                       (params->drv_rev << 8) |
1315                                       (params->drv_eng);
1316                 strlcpy(drv_version.name, params->name,
1317                         MCP_DRV_VER_STR_SIZE - 4);
1318                 rc = qed_mcp_send_drv_version(hwfn, hwfn->p_main_ptt,
1319                                               &drv_version);
1320                 if (rc) {
1321                         DP_NOTICE(cdev, "Failed sending drv version command\n");
1322                         goto err4;
1323                 }
1324         }
1325 
1326         qed_reset_vport_stats(cdev);
1327 
1328         return 0;
1329 
1330 err4:
1331         qed_ll2_dealloc_if(cdev);
1332 err3:
1333         qed_hw_stop(cdev);
1334 err2:
1335         qed_hw_timers_stop_all(cdev);
1336         if (IS_PF(cdev))
1337                 qed_slowpath_irq_free(cdev);
1338         qed_free_stream_mem(cdev);
1339         qed_disable_msix(cdev);
1340 err1:
1341         qed_resc_free(cdev);
1342 err:
1343         if (IS_PF(cdev))
1344                 release_firmware(cdev->firmware);
1345 
1346         if (IS_PF(cdev) && (cdev->num_hwfns == 1) &&
1347             QED_LEADING_HWFN(cdev)->p_arfs_ptt)
1348                 qed_ptt_release(QED_LEADING_HWFN(cdev),
1349                                 QED_LEADING_HWFN(cdev)->p_arfs_ptt);
1350 
1351         qed_iov_wq_stop(cdev, false);
1352 
1353         qed_slowpath_wq_stop(cdev);
1354 
1355         return rc;
1356 }
1357 
1358 static int qed_slowpath_stop(struct qed_dev *cdev)
1359 {
1360         if (!cdev)
1361                 return -ENODEV;
1362 
1363         qed_slowpath_wq_stop(cdev);
1364 
1365         qed_ll2_dealloc_if(cdev);
1366 
1367         if (IS_PF(cdev)) {
1368                 if (cdev->num_hwfns == 1)
1369                         qed_ptt_release(QED_LEADING_HWFN(cdev),
1370                                         QED_LEADING_HWFN(cdev)->p_arfs_ptt);
1371                 qed_free_stream_mem(cdev);
1372                 if (IS_QED_ETH_IF(cdev))
1373                         qed_sriov_disable(cdev, true);
1374         }
1375 
1376         qed_nic_stop(cdev);
1377 
1378         if (IS_PF(cdev))
1379                 qed_slowpath_irq_free(cdev);
1380 
1381         qed_disable_msix(cdev);
1382 
1383         qed_resc_free(cdev);
1384 
1385         qed_iov_wq_stop(cdev, true);
1386 
1387         if (IS_PF(cdev))
1388                 release_firmware(cdev->firmware);
1389 
1390         return 0;
1391 }
1392 
1393 static void qed_set_name(struct qed_dev *cdev, char name[NAME_SIZE])
1394 {
1395         int i;
1396 
1397         memcpy(cdev->name, name, NAME_SIZE);
1398         for_each_hwfn(cdev, i)
1399                 snprintf(cdev->hwfns[i].name, NAME_SIZE, "%s-%d", name, i);
1400 }
1401 
1402 static u32 qed_sb_init(struct qed_dev *cdev,
1403                        struct qed_sb_info *sb_info,
1404                        void *sb_virt_addr,
1405                        dma_addr_t sb_phy_addr, u16 sb_id,
1406                        enum qed_sb_type type)
1407 {
1408         struct qed_hwfn *p_hwfn;
1409         struct qed_ptt *p_ptt;
1410         u16 rel_sb_id;
1411         u32 rc;
1412 
1413         /* RoCE/Storage use a single engine in CMT mode while L2 uses both */
1414         if (type == QED_SB_TYPE_L2_QUEUE) {
1415                 p_hwfn = &cdev->hwfns[sb_id % cdev->num_hwfns];
1416                 rel_sb_id = sb_id / cdev->num_hwfns;
1417         } else {
1418                 p_hwfn = QED_AFFIN_HWFN(cdev);
1419                 rel_sb_id = sb_id;
1420         }
1421 
1422         DP_VERBOSE(cdev, NETIF_MSG_INTR,
1423                    "hwfn [%d] <--[init]-- SB %04x [0x%04x upper]\n",
1424                    IS_LEAD_HWFN(p_hwfn) ? 0 : 1, rel_sb_id, sb_id);
1425 
1426         if (IS_PF(p_hwfn->cdev)) {
1427                 p_ptt = qed_ptt_acquire(p_hwfn);
1428                 if (!p_ptt)
1429                         return -EBUSY;
1430 
1431                 rc = qed_int_sb_init(p_hwfn, p_ptt, sb_info, sb_virt_addr,
1432                                      sb_phy_addr, rel_sb_id);
1433                 qed_ptt_release(p_hwfn, p_ptt);
1434         } else {
1435                 rc = qed_int_sb_init(p_hwfn, NULL, sb_info, sb_virt_addr,
1436                                      sb_phy_addr, rel_sb_id);
1437         }
1438 
1439         return rc;
1440 }
1441 
1442 static u32 qed_sb_release(struct qed_dev *cdev,
1443                           struct qed_sb_info *sb_info,
1444                           u16 sb_id,
1445                           enum qed_sb_type type)
1446 {
1447         struct qed_hwfn *p_hwfn;
1448         u16 rel_sb_id;
1449         u32 rc;
1450 
1451         /* RoCE/Storage use a single engine in CMT mode while L2 uses both */
1452         if (type == QED_SB_TYPE_L2_QUEUE) {
1453                 p_hwfn = &cdev->hwfns[sb_id % cdev->num_hwfns];
1454                 rel_sb_id = sb_id / cdev->num_hwfns;
1455         } else {
1456                 p_hwfn = QED_AFFIN_HWFN(cdev);
1457                 rel_sb_id = sb_id;
1458         }
1459 
1460         DP_VERBOSE(cdev, NETIF_MSG_INTR,
1461                    "hwfn [%d] <--[init]-- SB %04x [0x%04x upper]\n",
1462                    IS_LEAD_HWFN(p_hwfn) ? 0 : 1, rel_sb_id, sb_id);
1463 
1464         rc = qed_int_sb_release(p_hwfn, sb_info, rel_sb_id);
1465 
1466         return rc;
1467 }
1468 
1469 static bool qed_can_link_change(struct qed_dev *cdev)
1470 {
1471         return true;
1472 }
1473 
1474 static int qed_set_link(struct qed_dev *cdev, struct qed_link_params *params)
1475 {
1476         struct qed_hwfn *hwfn;
1477         struct qed_mcp_link_params *link_params;
1478         struct qed_ptt *ptt;
1479         u32 sup_caps;
1480         int rc;
1481 
1482         if (!cdev)
1483                 return -ENODEV;
1484 
1485         /* The link should be set only once per PF */
1486         hwfn = &cdev->hwfns[0];
1487 
1488         /* When VF wants to set link, force it to read the bulletin instead.
1489          * This mimics the PF behavior, where a noitification [both immediate
1490          * and possible later] would be generated when changing properties.
1491          */
1492         if (IS_VF(cdev)) {
1493                 qed_schedule_iov(hwfn, QED_IOV_WQ_VF_FORCE_LINK_QUERY_FLAG);
1494                 return 0;
1495         }
1496 
1497         ptt = qed_ptt_acquire(hwfn);
1498         if (!ptt)
1499                 return -EBUSY;
1500 
1501         link_params = qed_mcp_get_link_params(hwfn);
1502         if (params->override_flags & QED_LINK_OVERRIDE_SPEED_AUTONEG)
1503                 link_params->speed.autoneg = params->autoneg;
1504         if (params->override_flags & QED_LINK_OVERRIDE_SPEED_ADV_SPEEDS) {
1505                 link_params->speed.advertised_speeds = 0;
1506                 sup_caps = QED_LM_1000baseT_Full_BIT |
1507                            QED_LM_1000baseKX_Full_BIT |
1508                            QED_LM_1000baseX_Full_BIT;
1509                 if (params->adv_speeds & sup_caps)
1510                         link_params->speed.advertised_speeds |=
1511                             NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G;
1512                 sup_caps = QED_LM_10000baseT_Full_BIT |
1513                            QED_LM_10000baseKR_Full_BIT |
1514                            QED_LM_10000baseKX4_Full_BIT |
1515                            QED_LM_10000baseR_FEC_BIT |
1516                            QED_LM_10000baseCR_Full_BIT |
1517                            QED_LM_10000baseSR_Full_BIT |
1518                            QED_LM_10000baseLR_Full_BIT |
1519                            QED_LM_10000baseLRM_Full_BIT;
1520                 if (params->adv_speeds & sup_caps)
1521                         link_params->speed.advertised_speeds |=
1522                             NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G;
1523                 if (params->adv_speeds & QED_LM_20000baseKR2_Full_BIT)
1524                         link_params->speed.advertised_speeds |=
1525                                 NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_20G;
1526                 sup_caps = QED_LM_25000baseKR_Full_BIT |
1527                            QED_LM_25000baseCR_Full_BIT |
1528                            QED_LM_25000baseSR_Full_BIT;
1529                 if (params->adv_speeds & sup_caps)
1530                         link_params->speed.advertised_speeds |=
1531                             NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_25G;
1532                 sup_caps = QED_LM_40000baseLR4_Full_BIT |
1533                            QED_LM_40000baseKR4_Full_BIT |
1534                            QED_LM_40000baseCR4_Full_BIT |
1535                            QED_LM_40000baseSR4_Full_BIT;
1536                 if (params->adv_speeds & sup_caps)
1537                         link_params->speed.advertised_speeds |=
1538                                 NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G;
1539                 sup_caps = QED_LM_50000baseKR2_Full_BIT |
1540                            QED_LM_50000baseCR2_Full_BIT |
1541                            QED_LM_50000baseSR2_Full_BIT;
1542                 if (params->adv_speeds & sup_caps)
1543                         link_params->speed.advertised_speeds |=
1544                             NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G;
1545                 sup_caps = QED_LM_100000baseKR4_Full_BIT |
1546                            QED_LM_100000baseSR4_Full_BIT |
1547                            QED_LM_100000baseCR4_Full_BIT |
1548                            QED_LM_100000baseLR4_ER4_Full_BIT;
1549                 if (params->adv_speeds & sup_caps)
1550                         link_params->speed.advertised_speeds |=
1551                             NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_BB_100G;
1552         }
1553         if (params->override_flags & QED_LINK_OVERRIDE_SPEED_FORCED_SPEED)
1554                 link_params->speed.forced_speed = params->forced_speed;
1555         if (params->override_flags & QED_LINK_OVERRIDE_PAUSE_CONFIG) {
1556                 if (params->pause_config & QED_LINK_PAUSE_AUTONEG_ENABLE)
1557                         link_params->pause.autoneg = true;
1558                 else
1559                         link_params->pause.autoneg = false;
1560                 if (params->pause_config & QED_LINK_PAUSE_RX_ENABLE)
1561                         link_params->pause.forced_rx = true;
1562                 else
1563                         link_params->pause.forced_rx = false;
1564                 if (params->pause_config & QED_LINK_PAUSE_TX_ENABLE)
1565                         link_params->pause.forced_tx = true;
1566                 else
1567                         link_params->pause.forced_tx = false;
1568         }
1569         if (params->override_flags & QED_LINK_OVERRIDE_LOOPBACK_MODE) {
1570                 switch (params->loopback_mode) {
1571                 case QED_LINK_LOOPBACK_INT_PHY:
1572                         link_params->loopback_mode = ETH_LOOPBACK_INT_PHY;
1573                         break;
1574                 case QED_LINK_LOOPBACK_EXT_PHY:
1575                         link_params->loopback_mode = ETH_LOOPBACK_EXT_PHY;
1576                         break;
1577                 case QED_LINK_LOOPBACK_EXT:
1578                         link_params->loopback_mode = ETH_LOOPBACK_EXT;
1579                         break;
1580                 case QED_LINK_LOOPBACK_MAC:
1581                         link_params->loopback_mode = ETH_LOOPBACK_MAC;
1582                         break;
1583                 default:
1584                         link_params->loopback_mode = ETH_LOOPBACK_NONE;
1585                         break;
1586                 }
1587         }
1588 
1589         if (params->override_flags & QED_LINK_OVERRIDE_EEE_CONFIG)
1590                 memcpy(&link_params->eee, &params->eee,
1591                        sizeof(link_params->eee));
1592 
1593         rc = qed_mcp_set_link(hwfn, ptt, params->link_up);
1594 
1595         qed_ptt_release(hwfn, ptt);
1596 
1597         return rc;
1598 }
1599 
1600 static int qed_get_port_type(u32 media_type)
1601 {
1602         int port_type;
1603 
1604         switch (media_type) {
1605         case MEDIA_SFPP_10G_FIBER:
1606         case MEDIA_SFP_1G_FIBER:
1607         case MEDIA_XFP_FIBER:
1608         case MEDIA_MODULE_FIBER:
1609         case MEDIA_KR:
1610                 port_type = PORT_FIBRE;
1611                 break;
1612         case MEDIA_DA_TWINAX:
1613                 port_type = PORT_DA;
1614                 break;
1615         case MEDIA_BASE_T:
1616                 port_type = PORT_TP;
1617                 break;
1618         case MEDIA_NOT_PRESENT:
1619                 port_type = PORT_NONE;
1620                 break;
1621         case MEDIA_UNSPECIFIED:
1622         default:
1623                 port_type = PORT_OTHER;
1624                 break;
1625         }
1626         return port_type;
1627 }
1628 
1629 static int qed_get_link_data(struct qed_hwfn *hwfn,
1630                              struct qed_mcp_link_params *params,
1631                              struct qed_mcp_link_state *link,
1632                              struct qed_mcp_link_capabilities *link_caps)
1633 {
1634         void *p;
1635 
1636         if (!IS_PF(hwfn->cdev)) {
1637                 qed_vf_get_link_params(hwfn, params);
1638                 qed_vf_get_link_state(hwfn, link);
1639                 qed_vf_get_link_caps(hwfn, link_caps);
1640 
1641                 return 0;
1642         }
1643 
1644         p = qed_mcp_get_link_params(hwfn);
1645         if (!p)
1646                 return -ENXIO;
1647         memcpy(params, p, sizeof(*params));
1648 
1649         p = qed_mcp_get_link_state(hwfn);
1650         if (!p)
1651                 return -ENXIO;
1652         memcpy(link, p, sizeof(*link));
1653 
1654         p = qed_mcp_get_link_capabilities(hwfn);
1655         if (!p)
1656                 return -ENXIO;
1657         memcpy(link_caps, p, sizeof(*link_caps));
1658 
1659         return 0;
1660 }
1661 
1662 static void qed_fill_link_capability(struct qed_hwfn *hwfn,
1663                                      struct qed_ptt *ptt, u32 capability,
1664                                      u32 *if_capability)
1665 {
1666         u32 media_type, tcvr_state, tcvr_type;
1667         u32 speed_mask, board_cfg;
1668 
1669         if (qed_mcp_get_media_type(hwfn, ptt, &media_type))
1670                 media_type = MEDIA_UNSPECIFIED;
1671 
1672         if (qed_mcp_get_transceiver_data(hwfn, ptt, &tcvr_state, &tcvr_type))
1673                 tcvr_type = ETH_TRANSCEIVER_STATE_UNPLUGGED;
1674 
1675         if (qed_mcp_trans_speed_mask(hwfn, ptt, &speed_mask))
1676                 speed_mask = 0xFFFFFFFF;
1677 
1678         if (qed_mcp_get_board_config(hwfn, ptt, &board_cfg))
1679                 board_cfg = NVM_CFG1_PORT_PORT_TYPE_UNDEFINED;
1680 
1681         DP_VERBOSE(hwfn->cdev, NETIF_MSG_DRV,
1682                    "Media_type = 0x%x tcvr_state = 0x%x tcvr_type = 0x%x speed_mask = 0x%x board_cfg = 0x%x\n",
1683                    media_type, tcvr_state, tcvr_type, speed_mask, board_cfg);
1684 
1685         switch (media_type) {
1686         case MEDIA_DA_TWINAX:
1687                 *if_capability |= QED_LM_FIBRE_BIT;
1688                 if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_20G)
1689                         *if_capability |= QED_LM_20000baseKR2_Full_BIT;
1690                 /* For DAC media multiple speed capabilities are supported*/
1691                 capability = capability & speed_mask;
1692                 if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G)
1693                         *if_capability |= QED_LM_1000baseKX_Full_BIT;
1694                 if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G)
1695                         *if_capability |= QED_LM_10000baseCR_Full_BIT;
1696                 if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G)
1697                         *if_capability |= QED_LM_40000baseCR4_Full_BIT;
1698                 if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_25G)
1699                         *if_capability |= QED_LM_25000baseCR_Full_BIT;
1700                 if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G)
1701                         *if_capability |= QED_LM_50000baseCR2_Full_BIT;
1702                 if (capability &
1703                         NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_BB_100G)
1704                         *if_capability |= QED_LM_100000baseCR4_Full_BIT;
1705                 break;
1706         case MEDIA_BASE_T:
1707                 *if_capability |= QED_LM_TP_BIT;
1708                 if (board_cfg & NVM_CFG1_PORT_PORT_TYPE_EXT_PHY) {
1709                         if (capability &
1710                             NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G) {
1711                                 *if_capability |= QED_LM_1000baseT_Full_BIT;
1712                         }
1713                         if (capability &
1714                             NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G) {
1715                                 *if_capability |= QED_LM_10000baseT_Full_BIT;
1716                         }
1717                 }
1718                 if (board_cfg & NVM_CFG1_PORT_PORT_TYPE_MODULE) {
1719                         *if_capability |= QED_LM_FIBRE_BIT;
1720                         if (tcvr_type == ETH_TRANSCEIVER_TYPE_1000BASET)
1721                                 *if_capability |= QED_LM_1000baseT_Full_BIT;
1722                         if (tcvr_type == ETH_TRANSCEIVER_TYPE_10G_BASET)
1723                                 *if_capability |= QED_LM_10000baseT_Full_BIT;
1724                 }
1725                 break;
1726         case MEDIA_SFP_1G_FIBER:
1727         case MEDIA_SFPP_10G_FIBER:
1728         case MEDIA_XFP_FIBER:
1729         case MEDIA_MODULE_FIBER:
1730                 *if_capability |= QED_LM_FIBRE_BIT;
1731                 if (capability &
1732                     NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G) {
1733                         if ((tcvr_type == ETH_TRANSCEIVER_TYPE_1G_LX) ||
1734                             (tcvr_type == ETH_TRANSCEIVER_TYPE_1G_SX))
1735                                 *if_capability |= QED_LM_1000baseKX_Full_BIT;
1736                 }
1737                 if (capability &
1738                     NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G) {
1739                         if (tcvr_type == ETH_TRANSCEIVER_TYPE_10G_SR)
1740                                 *if_capability |= QED_LM_10000baseSR_Full_BIT;
1741                         if (tcvr_type == ETH_TRANSCEIVER_TYPE_10G_LR)
1742                                 *if_capability |= QED_LM_10000baseLR_Full_BIT;
1743                         if (tcvr_type == ETH_TRANSCEIVER_TYPE_10G_LRM)
1744                                 *if_capability |= QED_LM_10000baseLRM_Full_BIT;
1745                         if (tcvr_type == ETH_TRANSCEIVER_TYPE_10G_ER)
1746                                 *if_capability |= QED_LM_10000baseR_FEC_BIT;
1747                 }
1748                 if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_20G)
1749                         *if_capability |= QED_LM_20000baseKR2_Full_BIT;
1750                 if (capability &
1751                     NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_25G) {
1752                         if (tcvr_type == ETH_TRANSCEIVER_TYPE_25G_SR)
1753                                 *if_capability |= QED_LM_25000baseSR_Full_BIT;
1754                 }
1755                 if (capability &
1756                     NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G) {
1757                         if (tcvr_type == ETH_TRANSCEIVER_TYPE_40G_LR4)
1758                                 *if_capability |= QED_LM_40000baseLR4_Full_BIT;
1759                         if (tcvr_type == ETH_TRANSCEIVER_TYPE_40G_SR4)
1760                                 *if_capability |= QED_LM_40000baseSR4_Full_BIT;
1761                 }
1762                 if (capability &
1763                     NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G)
1764                         *if_capability |= QED_LM_50000baseKR2_Full_BIT;
1765                 if (capability &
1766                     NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_BB_100G) {
1767                         if (tcvr_type == ETH_TRANSCEIVER_TYPE_100G_SR4)
1768                                 *if_capability |= QED_LM_100000baseSR4_Full_BIT;
1769                 }
1770 
1771                 break;
1772         case MEDIA_KR:
1773                 *if_capability |= QED_LM_Backplane_BIT;
1774                 if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_20G)
1775                         *if_capability |= QED_LM_20000baseKR2_Full_BIT;
1776                 if (capability &
1777                     NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G)
1778                         *if_capability |= QED_LM_1000baseKX_Full_BIT;
1779                 if (capability &
1780                     NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G)
1781                         *if_capability |= QED_LM_10000baseKR_Full_BIT;
1782                 if (capability &
1783                     NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_25G)
1784                         *if_capability |= QED_LM_25000baseKR_Full_BIT;
1785                 if (capability &
1786                     NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G)
1787                         *if_capability |= QED_LM_40000baseKR4_Full_BIT;
1788                 if (capability &
1789                     NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G)
1790                         *if_capability |= QED_LM_50000baseKR2_Full_BIT;
1791                 if (capability &
1792                     NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_BB_100G)
1793                         *if_capability |= QED_LM_100000baseKR4_Full_BIT;
1794                 break;
1795         case MEDIA_UNSPECIFIED:
1796         case MEDIA_NOT_PRESENT:
1797                 DP_VERBOSE(hwfn->cdev, QED_MSG_DEBUG,
1798                            "Unknown media and transceiver type;\n");
1799                 break;
1800         }
1801 }
1802 
1803 static void qed_fill_link(struct qed_hwfn *hwfn,
1804                           struct qed_ptt *ptt,
1805                           struct qed_link_output *if_link)
1806 {
1807         struct qed_mcp_link_capabilities link_caps;
1808         struct qed_mcp_link_params params;
1809         struct qed_mcp_link_state link;
1810         u32 media_type;
1811 
1812         memset(if_link, 0, sizeof(*if_link));
1813 
1814         /* Prepare source inputs */
1815         if (qed_get_link_data(hwfn, &params, &link, &link_caps)) {
1816                 dev_warn(&hwfn->cdev->pdev->dev, "no link data available\n");
1817                 return;
1818         }
1819 
1820         /* Set the link parameters to pass to protocol driver */
1821         if (link.link_up)
1822                 if_link->link_up = true;
1823 
1824         /* TODO - at the moment assume supported and advertised speed equal */
1825         if (link_caps.default_speed_autoneg)
1826                 if_link->supported_caps |= QED_LM_Autoneg_BIT;
1827         if (params.pause.autoneg ||
1828             (params.pause.forced_rx && params.pause.forced_tx))
1829                 if_link->supported_caps |= QED_LM_Asym_Pause_BIT;
1830         if (params.pause.autoneg || params.pause.forced_rx ||
1831             params.pause.forced_tx)
1832                 if_link->supported_caps |= QED_LM_Pause_BIT;
1833 
1834         if_link->advertised_caps = if_link->supported_caps;
1835         if (params.speed.autoneg)
1836                 if_link->advertised_caps |= QED_LM_Autoneg_BIT;
1837         else
1838                 if_link->advertised_caps &= ~QED_LM_Autoneg_BIT;
1839 
1840         /* Fill link advertised capability*/
1841         qed_fill_link_capability(hwfn, ptt, params.speed.advertised_speeds,
1842                                  &if_link->advertised_caps);
1843         /* Fill link supported capability*/
1844         qed_fill_link_capability(hwfn, ptt, link_caps.speed_capabilities,
1845                                  &if_link->supported_caps);
1846 
1847         if (link.link_up)
1848                 if_link->speed = link.speed;
1849 
1850         /* TODO - fill duplex properly */
1851         if_link->duplex = DUPLEX_FULL;
1852         qed_mcp_get_media_type(hwfn, ptt, &media_type);
1853         if_link->port = qed_get_port_type(media_type);
1854 
1855         if_link->autoneg = params.speed.autoneg;
1856 
1857         if (params.pause.autoneg)
1858                 if_link->pause_config |= QED_LINK_PAUSE_AUTONEG_ENABLE;
1859         if (params.pause.forced_rx)
1860                 if_link->pause_config |= QED_LINK_PAUSE_RX_ENABLE;
1861         if (params.pause.forced_tx)
1862                 if_link->pause_config |= QED_LINK_PAUSE_TX_ENABLE;
1863 
1864         /* Link partner capabilities */
1865         if (link.partner_adv_speed &
1866             QED_LINK_PARTNER_SPEED_1G_FD)
1867                 if_link->lp_caps |= QED_LM_1000baseT_Full_BIT;
1868         if (link.partner_adv_speed & QED_LINK_PARTNER_SPEED_10G)
1869                 if_link->lp_caps |= QED_LM_10000baseKR_Full_BIT;
1870         if (link.partner_adv_speed & QED_LINK_PARTNER_SPEED_20G)
1871                 if_link->lp_caps |= QED_LM_20000baseKR2_Full_BIT;
1872         if (link.partner_adv_speed & QED_LINK_PARTNER_SPEED_25G)
1873                 if_link->lp_caps |= QED_LM_25000baseKR_Full_BIT;
1874         if (link.partner_adv_speed & QED_LINK_PARTNER_SPEED_40G)
1875                 if_link->lp_caps |= QED_LM_40000baseLR4_Full_BIT;
1876         if (link.partner_adv_speed & QED_LINK_PARTNER_SPEED_50G)
1877                 if_link->lp_caps |= QED_LM_50000baseKR2_Full_BIT;
1878         if (link.partner_adv_speed & QED_LINK_PARTNER_SPEED_100G)
1879                 if_link->lp_caps |= QED_LM_100000baseKR4_Full_BIT;
1880 
1881         if (link.an_complete)
1882                 if_link->lp_caps |= QED_LM_Autoneg_BIT;
1883 
1884         if (link.partner_adv_pause)
1885                 if_link->lp_caps |= QED_LM_Pause_BIT;
1886         if (link.partner_adv_pause == QED_LINK_PARTNER_ASYMMETRIC_PAUSE ||
1887             link.partner_adv_pause == QED_LINK_PARTNER_BOTH_PAUSE)
1888                 if_link->lp_caps |= QED_LM_Asym_Pause_BIT;
1889 
1890         if (link_caps.default_eee == QED_MCP_EEE_UNSUPPORTED) {
1891                 if_link->eee_supported = false;
1892         } else {
1893                 if_link->eee_supported = true;
1894                 if_link->eee_active = link.eee_active;
1895                 if_link->sup_caps = link_caps.eee_speed_caps;
1896                 /* MFW clears adv_caps on eee disable; use configured value */
1897                 if_link->eee.adv_caps = link.eee_adv_caps ? link.eee_adv_caps :
1898                                         params.eee.adv_caps;
1899                 if_link->eee.lp_adv_caps = link.eee_lp_adv_caps;
1900                 if_link->eee.enable = params.eee.enable;
1901                 if_link->eee.tx_lpi_enable = params.eee.tx_lpi_enable;
1902                 if_link->eee.tx_lpi_timer = params.eee.tx_lpi_timer;
1903         }
1904 }
1905 
1906 static void qed_get_current_link(struct qed_dev *cdev,
1907                                  struct qed_link_output *if_link)
1908 {
1909         struct qed_hwfn *hwfn;
1910         struct qed_ptt *ptt;
1911         int i;
1912 
1913         hwfn = &cdev->hwfns[0];
1914         if (IS_PF(cdev)) {
1915                 ptt = qed_ptt_acquire(hwfn);
1916                 if (ptt) {
1917                         qed_fill_link(hwfn, ptt, if_link);
1918                         qed_ptt_release(hwfn, ptt);
1919                 } else {
1920                         DP_NOTICE(hwfn, "Failed to fill link; No PTT\n");
1921                 }
1922         } else {
1923                 qed_fill_link(hwfn, NULL, if_link);
1924         }
1925 
1926         for_each_hwfn(cdev, i)
1927                 qed_inform_vf_link_state(&cdev->hwfns[i]);
1928 }
1929 
1930 void qed_link_update(struct qed_hwfn *hwfn, struct qed_ptt *ptt)
1931 {
1932         void *cookie = hwfn->cdev->ops_cookie;
1933         struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
1934         struct qed_link_output if_link;
1935 
1936         qed_fill_link(hwfn, ptt, &if_link);
1937         qed_inform_vf_link_state(hwfn);
1938 
1939         if (IS_LEAD_HWFN(hwfn) && cookie)
1940                 op->link_update(cookie, &if_link);
1941 }
1942 
1943 static int qed_drain(struct qed_dev *cdev)
1944 {
1945         struct qed_hwfn *hwfn;
1946         struct qed_ptt *ptt;
1947         int i, rc;
1948 
1949         if (IS_VF(cdev))
1950                 return 0;
1951 
1952         for_each_hwfn(cdev, i) {
1953                 hwfn = &cdev->hwfns[i];
1954                 ptt = qed_ptt_acquire(hwfn);
1955                 if (!ptt) {
1956                         DP_NOTICE(hwfn, "Failed to drain NIG; No PTT\n");
1957                         return -EBUSY;
1958                 }
1959                 rc = qed_mcp_drain(hwfn, ptt);
1960                 qed_ptt_release(hwfn, ptt);
1961                 if (rc)
1962                         return rc;
1963         }
1964 
1965         return 0;
1966 }
1967 
1968 static u32 qed_nvm_flash_image_access_crc(struct qed_dev *cdev,
1969                                           struct qed_nvm_image_att *nvm_image,
1970                                           u32 *crc)
1971 {
1972         u8 *buf = NULL;
1973         int rc, j;
1974         u32 val;
1975 
1976         /* Allocate a buffer for holding the nvram image */
1977         buf = kzalloc(nvm_image->length, GFP_KERNEL);
1978         if (!buf)
1979                 return -ENOMEM;
1980 
1981         /* Read image into buffer */
1982         rc = qed_mcp_nvm_read(cdev, nvm_image->start_addr,
1983                               buf, nvm_image->length);
1984         if (rc) {
1985                 DP_ERR(cdev, "Failed reading image from nvm\n");
1986                 goto out;
1987         }
1988 
1989         /* Convert the buffer into big-endian format (excluding the
1990          * closing 4 bytes of CRC).
1991          */
1992         for (j = 0; j < nvm_image->length - 4; j += 4) {
1993                 val = cpu_to_be32(*(u32 *)&buf[j]);
1994                 *(u32 *)&buf[j] = val;
1995         }
1996 
1997         /* Calc CRC for the "actual" image buffer, i.e. not including
1998          * the last 4 CRC bytes.
1999          */
2000         *crc = (~cpu_to_be32(crc32(0xffffffff, buf, nvm_image->length - 4)));
2001 
2002 out:
2003         kfree(buf);
2004 
2005         return rc;
2006 }
2007 
2008 /* Binary file format -
2009  *     /----------------------------------------------------------------------\
2010  * 0B  |                       0x4 [command index]                            |
2011  * 4B  | image_type     | Options        |  Number of register settings       |
2012  * 8B  |                       Value                                          |
2013  * 12B |                       Mask                                           |
2014  * 16B |                       Offset                                         |
2015  *     \----------------------------------------------------------------------/
2016  * There can be several Value-Mask-Offset sets as specified by 'Number of...'.
2017  * Options - 0'b - Calculate & Update CRC for image
2018  */
2019 static int qed_nvm_flash_image_access(struct qed_dev *cdev, const u8 **data,
2020                                       bool *check_resp)
2021 {
2022         struct qed_nvm_image_att nvm_image;
2023         struct qed_hwfn *p_hwfn;
2024         bool is_crc = false;
2025         u32 image_type;
2026         int rc = 0, i;
2027         u16 len;
2028 
2029         *data += 4;
2030         image_type = **data;
2031         p_hwfn = QED_LEADING_HWFN(cdev);
2032         for (i = 0; i < p_hwfn->nvm_info.num_images; i++)
2033                 if (image_type == p_hwfn->nvm_info.image_att[i].image_type)
2034                         break;
2035         if (i == p_hwfn->nvm_info.num_images) {
2036                 DP_ERR(cdev, "Failed to find nvram image of type %08x\n",
2037                        image_type);
2038                 return -ENOENT;
2039         }
2040 
2041         nvm_image.start_addr = p_hwfn->nvm_info.image_att[i].nvm_start_addr;
2042         nvm_image.length = p_hwfn->nvm_info.image_att[i].len;
2043 
2044         DP_VERBOSE(cdev, NETIF_MSG_DRV,
2045                    "Read image %02x; type = %08x; NVM [%08x,...,%08x]\n",
2046                    **data, image_type, nvm_image.start_addr,
2047                    nvm_image.start_addr + nvm_image.length - 1);
2048         (*data)++;
2049         is_crc = !!(**data & BIT(0));
2050         (*data)++;
2051         len = *((u16 *)*data);
2052         *data += 2;
2053         if (is_crc) {
2054                 u32 crc = 0;
2055 
2056                 rc = qed_nvm_flash_image_access_crc(cdev, &nvm_image, &crc);
2057                 if (rc) {
2058                         DP_ERR(cdev, "Failed calculating CRC, rc = %d\n", rc);
2059                         goto exit;
2060                 }
2061 
2062                 rc = qed_mcp_nvm_write(cdev, QED_NVM_WRITE_NVRAM,
2063                                        (nvm_image.start_addr +
2064                                         nvm_image.length - 4), (u8 *)&crc, 4);
2065                 if (rc)
2066                         DP_ERR(cdev, "Failed writing to %08x, rc = %d\n",
2067                                nvm_image.start_addr + nvm_image.length - 4, rc);
2068                 goto exit;
2069         }
2070 
2071         /* Iterate over the values for setting */
2072         while (len) {
2073                 u32 offset, mask, value, cur_value;
2074                 u8 buf[4];
2075 
2076                 value = *((u32 *)*data);
2077                 *data += 4;
2078                 mask = *((u32 *)*data);
2079                 *data += 4;
2080                 offset = *((u32 *)*data);
2081                 *data += 4;
2082 
2083                 rc = qed_mcp_nvm_read(cdev, nvm_image.start_addr + offset, buf,
2084                                       4);
2085                 if (rc) {
2086                         DP_ERR(cdev, "Failed reading from %08x\n",
2087                                nvm_image.start_addr + offset);
2088                         goto exit;
2089                 }
2090 
2091                 cur_value = le32_to_cpu(*((__le32 *)buf));
2092                 DP_VERBOSE(cdev, NETIF_MSG_DRV,
2093                            "NVM %08x: %08x -> %08x [Value %08x Mask %08x]\n",
2094                            nvm_image.start_addr + offset, cur_value,
2095                            (cur_value & ~mask) | (value & mask), value, mask);
2096                 value = (value & mask) | (cur_value & ~mask);
2097                 rc = qed_mcp_nvm_write(cdev, QED_NVM_WRITE_NVRAM,
2098                                        nvm_image.start_addr + offset,
2099                                        (u8 *)&value, 4);
2100                 if (rc) {
2101                         DP_ERR(cdev, "Failed writing to %08x\n",
2102                                nvm_image.start_addr + offset);
2103                         goto exit;
2104                 }
2105 
2106                 len--;
2107         }
2108 exit:
2109         return rc;
2110 }
2111 
2112 /* Binary file format -
2113  *     /----------------------------------------------------------------------\
2114  * 0B  |                       0x3 [command index]                            |
2115  * 4B  | b'0: check_response?   | b'1-31  reserved                            |
2116  * 8B  | File-type |                   reserved                               |
2117  * 12B |                    Image length in bytes                             |
2118  *     \----------------------------------------------------------------------/
2119  *     Start a new file of the provided type
2120  */
2121 static int qed_nvm_flash_image_file_start(struct qed_dev *cdev,
2122                                           const u8 **data, bool *check_resp)
2123 {
2124         u32 file_type, file_size = 0;
2125         int rc;
2126 
2127         *data += 4;
2128         *check_resp = !!(**data & BIT(0));
2129         *data += 4;
2130         file_type = **data;
2131 
2132         DP_VERBOSE(cdev, NETIF_MSG_DRV,
2133                    "About to start a new file of type %02x\n", file_type);
2134         if (file_type == DRV_MB_PARAM_NVM_PUT_FILE_BEGIN_MBI) {
2135                 *data += 4;
2136                 file_size = *((u32 *)(*data));
2137         }
2138 
2139         rc = qed_mcp_nvm_write(cdev, QED_PUT_FILE_BEGIN, file_type,
2140                                (u8 *)(&file_size), 4);
2141         *data += 4;
2142 
2143         return rc;
2144 }
2145 
2146 /* Binary file format -
2147  *     /----------------------------------------------------------------------\
2148  * 0B  |                       0x2 [command index]                            |
2149  * 4B  |                       Length in bytes                                |
2150  * 8B  | b'0: check_response?   | b'1-31  reserved                            |
2151  * 12B |                       Offset in bytes                                |
2152  * 16B |                       Data ...                                       |
2153  *     \----------------------------------------------------------------------/
2154  *     Write data as part of a file that was previously started. Data should be
2155  *     of length equal to that provided in the message
2156  */
2157 static int qed_nvm_flash_image_file_data(struct qed_dev *cdev,
2158                                          const u8 **data, bool *check_resp)
2159 {
2160         u32 offset, len;
2161         int rc;
2162 
2163         *data += 4;
2164         len = *((u32 *)(*data));
2165         *data += 4;
2166         *check_resp = !!(**data & BIT(0));
2167         *data += 4;
2168         offset = *((u32 *)(*data));
2169         *data += 4;
2170 
2171         DP_VERBOSE(cdev, NETIF_MSG_DRV,
2172                    "About to write File-data: %08x bytes to offset %08x\n",
2173                    len, offset);
2174 
2175         rc = qed_mcp_nvm_write(cdev, QED_PUT_FILE_DATA, offset,
2176                                (char *)(*data), len);
2177         *data += len;
2178 
2179         return rc;
2180 }
2181 
2182 /* Binary file format [General header] -
2183  *     /----------------------------------------------------------------------\
2184  * 0B  |                       QED_NVM_SIGNATURE                              |
2185  * 4B  |                       Length in bytes                                |
2186  * 8B  | Highest command in this batchfile |          Reserved                |
2187  *     \----------------------------------------------------------------------/
2188  */
2189 static int qed_nvm_flash_image_validate(struct qed_dev *cdev,
2190                                         const struct firmware *image,
2191                                         const u8 **data)
2192 {
2193         u32 signature, len;
2194 
2195         /* Check minimum size */
2196         if (image->size < 12) {
2197                 DP_ERR(cdev, "Image is too short [%08x]\n", (u32)image->size);
2198                 return -EINVAL;
2199         }
2200 
2201         /* Check signature */
2202         signature = *((u32 *)(*data));
2203         if (signature != QED_NVM_SIGNATURE) {
2204                 DP_ERR(cdev, "Wrong signature '%08x'\n", signature);
2205                 return -EINVAL;
2206         }
2207 
2208         *data += 4;
2209         /* Validate internal size equals the image-size */
2210         len = *((u32 *)(*data));
2211         if (len != image->size) {
2212                 DP_ERR(cdev, "Size mismatch: internal = %08x image = %08x\n",
2213                        len, (u32)image->size);
2214                 return -EINVAL;
2215         }
2216 
2217         *data += 4;
2218         /* Make sure driver familiar with all commands necessary for this */
2219         if (*((u16 *)(*data)) >= QED_NVM_FLASH_CMD_NVM_MAX) {
2220                 DP_ERR(cdev, "File contains unsupported commands [Need %04x]\n",
2221                        *((u16 *)(*data)));
2222                 return -EINVAL;
2223         }
2224 
2225         *data += 4;
2226 
2227         return 0;
2228 }
2229 
2230 /* Binary file format -
2231  *     /----------------------------------------------------------------------\
2232  * 0B  |                       0x5 [command index]                            |
2233  * 4B  | Number of config attributes     |          Reserved                  |
2234  * 4B  | Config ID                       | Entity ID      | Length            |
2235  * 4B  | Value                                                                |
2236  *     |                                                                      |
2237  *     \----------------------------------------------------------------------/
2238  * There can be several cfg_id-entity_id-Length-Value sets as specified by
2239  * 'Number of config attributes'.
2240  *
2241  * The API parses config attributes from the user provided buffer and flashes
2242  * them to the respective NVM path using Management FW inerface.
2243  */
2244 static int qed_nvm_flash_cfg_write(struct qed_dev *cdev, const u8 **data)
2245 {
2246         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2247         u8 entity_id, len, buf[32];
2248         bool need_nvm_init = true;
2249         struct qed_ptt *ptt;
2250         u16 cfg_id, count;
2251         int rc = 0, i;
2252         u32 flags;
2253 
2254         ptt = qed_ptt_acquire(hwfn);
2255         if (!ptt)
2256                 return -EAGAIN;
2257 
2258         /* NVM CFG ID attribute header */
2259         *data += 4;
2260         count = *((u16 *)*data);
2261         *data += 4;
2262 
2263         DP_VERBOSE(cdev, NETIF_MSG_DRV,
2264                    "Read config ids: num_attrs = %0d\n", count);
2265         /* NVM CFG ID attributes. Start loop index from 1 to avoid additional
2266          * arithmetic operations in the implementation.
2267          */
2268         for (i = 1; i <= count; i++) {
2269                 cfg_id = *((u16 *)*data);
2270                 *data += 2;
2271                 entity_id = **data;
2272                 (*data)++;
2273                 len = **data;
2274                 (*data)++;
2275                 memcpy(buf, *data, len);
2276                 *data += len;
2277 
2278                 flags = 0;
2279                 if (need_nvm_init) {
2280                         flags |= QED_NVM_CFG_OPTION_INIT;
2281                         need_nvm_init = false;
2282                 }
2283 
2284                 /* Commit to flash and free the resources */
2285                 if (!(i % QED_NVM_CFG_MAX_ATTRS) || i == count) {
2286                         flags |= QED_NVM_CFG_OPTION_COMMIT |
2287                                  QED_NVM_CFG_OPTION_FREE;
2288                         need_nvm_init = true;
2289                 }
2290 
2291                 if (entity_id)
2292                         flags |= QED_NVM_CFG_OPTION_ENTITY_SEL;
2293 
2294                 DP_VERBOSE(cdev, NETIF_MSG_DRV,
2295                            "cfg_id = %d entity = %d len = %d\n", cfg_id,
2296                            entity_id, len);
2297                 rc = qed_mcp_nvm_set_cfg(hwfn, ptt, cfg_id, entity_id, flags,
2298                                          buf, len);
2299                 if (rc) {
2300                         DP_ERR(cdev, "Error %d configuring %d\n", rc, cfg_id);
2301                         break;
2302                 }
2303         }
2304 
2305         qed_ptt_release(hwfn, ptt);
2306 
2307         return rc;
2308 }
2309 
2310 #define QED_MAX_NVM_BUF_LEN     32
2311 static int qed_nvm_flash_cfg_len(struct qed_dev *cdev, u32 cmd)
2312 {
2313         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2314         u8 buf[QED_MAX_NVM_BUF_LEN];
2315         struct qed_ptt *ptt;
2316         u32 len;
2317         int rc;
2318 
2319         ptt = qed_ptt_acquire(hwfn);
2320         if (!ptt)
2321                 return QED_MAX_NVM_BUF_LEN;
2322 
2323         rc = qed_mcp_nvm_get_cfg(hwfn, ptt, cmd, 0, QED_NVM_CFG_GET_FLAGS, buf,
2324                                  &len);
2325         if (rc || !len) {
2326                 DP_ERR(cdev, "Error %d reading %d\n", rc, cmd);
2327                 len = QED_MAX_NVM_BUF_LEN;
2328         }
2329 
2330         qed_ptt_release(hwfn, ptt);
2331 
2332         return len;
2333 }
2334 
2335 static int qed_nvm_flash_cfg_read(struct qed_dev *cdev, u8 **data,
2336                                   u32 cmd, u32 entity_id)
2337 {
2338         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2339         struct qed_ptt *ptt;
2340         u32 flags, len;
2341         int rc = 0;
2342 
2343         ptt = qed_ptt_acquire(hwfn);
2344         if (!ptt)
2345                 return -EAGAIN;
2346 
2347         DP_VERBOSE(cdev, NETIF_MSG_DRV,
2348                    "Read config cmd = %d entity id %d\n", cmd, entity_id);
2349         flags = entity_id ? QED_NVM_CFG_GET_PF_FLAGS : QED_NVM_CFG_GET_FLAGS;
2350         rc = qed_mcp_nvm_get_cfg(hwfn, ptt, cmd, entity_id, flags, *data, &len);
2351         if (rc)
2352                 DP_ERR(cdev, "Error %d reading %d\n", rc, cmd);
2353 
2354         qed_ptt_release(hwfn, ptt);
2355 
2356         return rc;
2357 }
2358 
2359 static int qed_nvm_flash(struct qed_dev *cdev, const char *name)
2360 {
2361         const struct firmware *image;
2362         const u8 *data, *data_end;
2363         u32 cmd_type;
2364         int rc;
2365 
2366         rc = request_firmware(&image, name, &cdev->pdev->dev);
2367         if (rc) {
2368                 DP_ERR(cdev, "Failed to find '%s'\n", name);
2369                 return rc;
2370         }
2371 
2372         DP_VERBOSE(cdev, NETIF_MSG_DRV,
2373                    "Flashing '%s' - firmware's data at %p, size is %08x\n",
2374                    name, image->data, (u32)image->size);
2375         data = image->data;
2376         data_end = data + image->size;
2377 
2378         rc = qed_nvm_flash_image_validate(cdev, image, &data);
2379         if (rc)
2380                 goto exit;
2381 
2382         while (data < data_end) {
2383                 bool check_resp = false;
2384 
2385                 /* Parse the actual command */
2386                 cmd_type = *((u32 *)data);
2387                 switch (cmd_type) {
2388                 case QED_NVM_FLASH_CMD_FILE_DATA:
2389                         rc = qed_nvm_flash_image_file_data(cdev, &data,
2390                                                            &check_resp);
2391                         break;
2392                 case QED_NVM_FLASH_CMD_FILE_START:
2393                         rc = qed_nvm_flash_image_file_start(cdev, &data,
2394                                                             &check_resp);
2395                         break;
2396                 case QED_NVM_FLASH_CMD_NVM_CHANGE:
2397                         rc = qed_nvm_flash_image_access(cdev, &data,
2398                                                         &check_resp);
2399                         break;
2400                 case QED_NVM_FLASH_CMD_NVM_CFG_ID:
2401                         rc = qed_nvm_flash_cfg_write(cdev, &data);
2402                         break;
2403                 default:
2404                         DP_ERR(cdev, "Unknown command %08x\n", cmd_type);
2405                         rc = -EINVAL;
2406                         goto exit;
2407                 }
2408 
2409                 if (rc) {
2410                         DP_ERR(cdev, "Command %08x failed\n", cmd_type);
2411                         goto exit;
2412                 }
2413 
2414                 /* Check response if needed */
2415                 if (check_resp) {
2416                         u32 mcp_response = 0;
2417 
2418                         if (qed_mcp_nvm_resp(cdev, (u8 *)&mcp_response)) {
2419                                 DP_ERR(cdev, "Failed getting MCP response\n");
2420                                 rc = -EINVAL;
2421                                 goto exit;
2422                         }
2423 
2424                         switch (mcp_response & FW_MSG_CODE_MASK) {
2425                         case FW_MSG_CODE_OK:
2426                         case FW_MSG_CODE_NVM_OK:
2427                         case FW_MSG_CODE_NVM_PUT_FILE_FINISH_OK:
2428                         case FW_MSG_CODE_PHY_OK:
2429                                 break;
2430                         default:
2431                                 DP_ERR(cdev, "MFW returns error: %08x\n",
2432                                        mcp_response);
2433                                 rc = -EINVAL;
2434                                 goto exit;
2435                         }
2436                 }
2437         }
2438 
2439 exit:
2440         release_firmware(image);
2441 
2442         return rc;
2443 }
2444 
2445 static int qed_nvm_get_image(struct qed_dev *cdev, enum qed_nvm_images type,
2446                              u8 *buf, u16 len)
2447 {
2448         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2449 
2450         return qed_mcp_get_nvm_image(hwfn, type, buf, len);
2451 }
2452 
2453 void qed_schedule_recovery_handler(struct qed_hwfn *p_hwfn)
2454 {
2455         struct qed_common_cb_ops *ops = p_hwfn->cdev->protocol_ops.common;
2456         void *cookie = p_hwfn->cdev->ops_cookie;
2457 
2458         if (ops && ops->schedule_recovery_handler)
2459                 ops->schedule_recovery_handler(cookie);
2460 }
2461 
2462 static int qed_set_coalesce(struct qed_dev *cdev, u16 rx_coal, u16 tx_coal,
2463                             void *handle)
2464 {
2465                 return qed_set_queue_coalesce(rx_coal, tx_coal, handle);
2466 }
2467 
2468 static int qed_set_led(struct qed_dev *cdev, enum qed_led_mode mode)
2469 {
2470         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2471         struct qed_ptt *ptt;
2472         int status = 0;
2473 
2474         ptt = qed_ptt_acquire(hwfn);
2475         if (!ptt)
2476                 return -EAGAIN;
2477 
2478         status = qed_mcp_set_led(hwfn, ptt, mode);
2479 
2480         qed_ptt_release(hwfn, ptt);
2481 
2482         return status;
2483 }
2484 
2485 static int qed_recovery_process(struct qed_dev *cdev)
2486 {
2487         struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
2488         struct qed_ptt *p_ptt;
2489         int rc = 0;
2490 
2491         p_ptt = qed_ptt_acquire(p_hwfn);
2492         if (!p_ptt)
2493                 return -EAGAIN;
2494 
2495         rc = qed_start_recovery_process(p_hwfn, p_ptt);
2496 
2497         qed_ptt_release(p_hwfn, p_ptt);
2498 
2499         return rc;
2500 }
2501 
2502 static int qed_update_wol(struct qed_dev *cdev, bool enabled)
2503 {
2504         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2505         struct qed_ptt *ptt;
2506         int rc = 0;
2507 
2508         if (IS_VF(cdev))
2509                 return 0;
2510 
2511         ptt = qed_ptt_acquire(hwfn);
2512         if (!ptt)
2513                 return -EAGAIN;
2514 
2515         rc = qed_mcp_ov_update_wol(hwfn, ptt, enabled ? QED_OV_WOL_ENABLED
2516                                    : QED_OV_WOL_DISABLED);
2517         if (rc)
2518                 goto out;
2519         rc = qed_mcp_ov_update_current_config(hwfn, ptt, QED_OV_CLIENT_DRV);
2520 
2521 out:
2522         qed_ptt_release(hwfn, ptt);
2523         return rc;
2524 }
2525 
2526 static int qed_update_drv_state(struct qed_dev *cdev, bool active)
2527 {
2528         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2529         struct qed_ptt *ptt;
2530         int status = 0;
2531 
2532         if (IS_VF(cdev))
2533                 return 0;
2534 
2535         ptt = qed_ptt_acquire(hwfn);
2536         if (!ptt)
2537                 return -EAGAIN;
2538 
2539         status = qed_mcp_ov_update_driver_state(hwfn, ptt, active ?
2540                                                 QED_OV_DRIVER_STATE_ACTIVE :
2541                                                 QED_OV_DRIVER_STATE_DISABLED);
2542 
2543         qed_ptt_release(hwfn, ptt);
2544 
2545         return status;
2546 }
2547 
2548 static int qed_update_mac(struct qed_dev *cdev, u8 *mac)
2549 {
2550         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2551         struct qed_ptt *ptt;
2552         int status = 0;
2553 
2554         if (IS_VF(cdev))
2555                 return 0;
2556 
2557         ptt = qed_ptt_acquire(hwfn);
2558         if (!ptt)
2559                 return -EAGAIN;
2560 
2561         status = qed_mcp_ov_update_mac(hwfn, ptt, mac);
2562         if (status)
2563                 goto out;
2564 
2565         status = qed_mcp_ov_update_current_config(hwfn, ptt, QED_OV_CLIENT_DRV);
2566 
2567 out:
2568         qed_ptt_release(hwfn, ptt);
2569         return status;
2570 }
2571 
2572 static int qed_update_mtu(struct qed_dev *cdev, u16 mtu)
2573 {
2574         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2575         struct qed_ptt *ptt;
2576         int status = 0;
2577 
2578         if (IS_VF(cdev))
2579                 return 0;
2580 
2581         ptt = qed_ptt_acquire(hwfn);
2582         if (!ptt)
2583                 return -EAGAIN;
2584 
2585         status = qed_mcp_ov_update_mtu(hwfn, ptt, mtu);
2586         if (status)
2587                 goto out;
2588 
2589         status = qed_mcp_ov_update_current_config(hwfn, ptt, QED_OV_CLIENT_DRV);
2590 
2591 out:
2592         qed_ptt_release(hwfn, ptt);
2593         return status;
2594 }
2595 
2596 static int qed_read_module_eeprom(struct qed_dev *cdev, char *buf,
2597                                   u8 dev_addr, u32 offset, u32 len)
2598 {
2599         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2600         struct qed_ptt *ptt;
2601         int rc = 0;
2602 
2603         if (IS_VF(cdev))
2604                 return 0;
2605 
2606         ptt = qed_ptt_acquire(hwfn);
2607         if (!ptt)
2608                 return -EAGAIN;
2609 
2610         rc = qed_mcp_phy_sfp_read(hwfn, ptt, MFW_PORT(hwfn), dev_addr,
2611                                   offset, len, buf);
2612 
2613         qed_ptt_release(hwfn, ptt);
2614 
2615         return rc;
2616 }
2617 
2618 static int qed_set_grc_config(struct qed_dev *cdev, u32 cfg_id, u32 val)
2619 {
2620         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2621         struct qed_ptt *ptt;
2622         int rc = 0;
2623 
2624         if (IS_VF(cdev))
2625                 return 0;
2626 
2627         ptt = qed_ptt_acquire(hwfn);
2628         if (!ptt)
2629                 return -EAGAIN;
2630 
2631         rc = qed_dbg_grc_config(hwfn, ptt, cfg_id, val);
2632 
2633         qed_ptt_release(hwfn, ptt);
2634 
2635         return rc;
2636 }
2637 
2638 static u8 qed_get_affin_hwfn_idx(struct qed_dev *cdev)
2639 {
2640         return QED_AFFIN_HWFN_IDX(cdev);
2641 }
2642 
2643 static struct qed_selftest_ops qed_selftest_ops_pass = {
2644         .selftest_memory = &qed_selftest_memory,
2645         .selftest_interrupt = &qed_selftest_interrupt,
2646         .selftest_register = &qed_selftest_register,
2647         .selftest_clock = &qed_selftest_clock,
2648         .selftest_nvram = &qed_selftest_nvram,
2649 };
2650 
2651 const struct qed_common_ops qed_common_ops_pass = {
2652         .selftest = &qed_selftest_ops_pass,
2653         .probe = &qed_probe,
2654         .remove = &qed_remove,
2655         .set_power_state = &qed_set_power_state,
2656         .set_name = &qed_set_name,
2657         .update_pf_params = &qed_update_pf_params,
2658         .slowpath_start = &qed_slowpath_start,
2659         .slowpath_stop = &qed_slowpath_stop,
2660         .set_fp_int = &qed_set_int_fp,
2661         .get_fp_int = &qed_get_int_fp,
2662         .sb_init = &qed_sb_init,
2663         .sb_release = &qed_sb_release,
2664         .simd_handler_config = &qed_simd_handler_config,
2665         .simd_handler_clean = &qed_simd_handler_clean,
2666         .dbg_grc = &qed_dbg_grc,
2667         .dbg_grc_size = &qed_dbg_grc_size,
2668         .can_link_change = &qed_can_link_change,
2669         .set_link = &qed_set_link,
2670         .get_link = &qed_get_current_link,
2671         .drain = &qed_drain,
2672         .update_msglvl = &qed_init_dp,
2673         .dbg_all_data = &qed_dbg_all_data,
2674         .dbg_all_data_size = &qed_dbg_all_data_size,
2675         .chain_alloc = &qed_chain_alloc,
2676         .chain_free = &qed_chain_free,
2677         .nvm_flash = &qed_nvm_flash,
2678         .nvm_get_image = &qed_nvm_get_image,
2679         .set_coalesce = &qed_set_coalesce,
2680         .set_led = &qed_set_led,
2681         .recovery_process = &qed_recovery_process,
2682         .recovery_prolog = &qed_recovery_prolog,
2683         .update_drv_state = &qed_update_drv_state,
2684         .update_mac = &qed_update_mac,
2685         .update_mtu = &qed_update_mtu,
2686         .update_wol = &qed_update_wol,
2687         .db_recovery_add = &qed_db_recovery_add,
2688         .db_recovery_del = &qed_db_recovery_del,
2689         .read_module_eeprom = &qed_read_module_eeprom,
2690         .get_affin_hwfn_idx = &qed_get_affin_hwfn_idx,
2691         .read_nvm_cfg = &qed_nvm_flash_cfg_read,
2692         .read_nvm_cfg_len = &qed_nvm_flash_cfg_len,
2693         .set_grc_config = &qed_set_grc_config,
2694 };
2695 
2696 void qed_get_protocol_stats(struct qed_dev *cdev,
2697                             enum qed_mcp_protocol_type type,
2698                             union qed_mcp_protocol_stats *stats)
2699 {
2700         struct qed_eth_stats eth_stats;
2701 
2702         memset(stats, 0, sizeof(*stats));
2703 
2704         switch (type) {
2705         case QED_MCP_LAN_STATS:
2706                 qed_get_vport_stats(cdev, &eth_stats);
2707                 stats->lan_stats.ucast_rx_pkts =
2708                                         eth_stats.common.rx_ucast_pkts;
2709                 stats->lan_stats.ucast_tx_pkts =
2710                                         eth_stats.common.tx_ucast_pkts;
2711                 stats->lan_stats.fcs_err = -1;
2712                 break;
2713         case QED_MCP_FCOE_STATS:
2714                 qed_get_protocol_stats_fcoe(cdev, &stats->fcoe_stats);
2715                 break;
2716         case QED_MCP_ISCSI_STATS:
2717                 qed_get_protocol_stats_iscsi(cdev, &stats->iscsi_stats);
2718                 break;
2719         default:
2720                 DP_VERBOSE(cdev, QED_MSG_SP,
2721                            "Invalid protocol type = %d\n", type);
2722                 return;
2723         }
2724 }
2725 
2726 int qed_mfw_tlv_req(struct qed_hwfn *hwfn)
2727 {
2728         DP_VERBOSE(hwfn->cdev, NETIF_MSG_DRV,
2729                    "Scheduling slowpath task [Flag: %d]\n",
2730                    QED_SLOWPATH_MFW_TLV_REQ);
2731         smp_mb__before_atomic();
2732         set_bit(QED_SLOWPATH_MFW_TLV_REQ, &hwfn->slowpath_task_flags);
2733         smp_mb__after_atomic();
2734         queue_delayed_work(hwfn->slowpath_wq, &hwfn->slowpath_task, 0);
2735 
2736         return 0;
2737 }
2738 
2739 static void
2740 qed_fill_generic_tlv_data(struct qed_dev *cdev, struct qed_mfw_tlv_generic *tlv)
2741 {
2742         struct qed_common_cb_ops *op = cdev->protocol_ops.common;
2743         struct qed_eth_stats_common *p_common;
2744         struct qed_generic_tlvs gen_tlvs;
2745         struct qed_eth_stats stats;
2746         int i;
2747 
2748         memset(&gen_tlvs, 0, sizeof(gen_tlvs));
2749         op->get_generic_tlv_data(cdev->ops_cookie, &gen_tlvs);
2750 
2751         if (gen_tlvs.feat_flags & QED_TLV_IP_CSUM)
2752                 tlv->flags.ipv4_csum_offload = true;
2753         if (gen_tlvs.feat_flags & QED_TLV_LSO)
2754                 tlv->flags.lso_supported = true;
2755         tlv->flags.b_set = true;
2756 
2757         for (i = 0; i < QED_TLV_MAC_COUNT; i++) {
2758                 if (is_valid_ether_addr(gen_tlvs.mac[i])) {
2759                         ether_addr_copy(tlv->mac[i], gen_tlvs.mac[i]);
2760                         tlv->mac_set[i] = true;
2761                 }
2762         }
2763 
2764         qed_get_vport_stats(cdev, &stats);
2765         p_common = &stats.common;
2766         tlv->rx_frames = p_common->rx_ucast_pkts + p_common->rx_mcast_pkts +
2767                          p_common->rx_bcast_pkts;
2768         tlv->rx_frames_set = true;
2769         tlv->rx_bytes = p_common->rx_ucast_bytes + p_common->rx_mcast_bytes +
2770                         p_common->rx_bcast_bytes;
2771         tlv->rx_bytes_set = true;
2772         tlv->tx_frames = p_common->tx_ucast_pkts + p_common->tx_mcast_pkts +
2773                          p_common->tx_bcast_pkts;
2774         tlv->tx_frames_set = true;
2775         tlv->tx_bytes = p_common->tx_ucast_bytes + p_common->tx_mcast_bytes +
2776                         p_common->tx_bcast_bytes;
2777         tlv->rx_bytes_set = true;
2778 }
2779 
2780 int qed_mfw_fill_tlv_data(struct qed_hwfn *hwfn, enum qed_mfw_tlv_type type,
2781                           union qed_mfw_tlv_data *tlv_buf)
2782 {
2783         struct qed_dev *cdev = hwfn->cdev;
2784         struct qed_common_cb_ops *ops;
2785 
2786         ops = cdev->protocol_ops.common;
2787         if (!ops || !ops->get_protocol_tlv_data || !ops->get_generic_tlv_data) {
2788                 DP_NOTICE(hwfn, "Can't collect TLV management info\n");
2789                 return -EINVAL;
2790         }
2791 
2792         switch (type) {
2793         case QED_MFW_TLV_GENERIC:
2794                 qed_fill_generic_tlv_data(hwfn->cdev, &tlv_buf->generic);
2795                 break;
2796         case QED_MFW_TLV_ETH:
2797                 ops->get_protocol_tlv_data(cdev->ops_cookie, &tlv_buf->eth);
2798                 break;
2799         case QED_MFW_TLV_FCOE:
2800                 ops->get_protocol_tlv_data(cdev->ops_cookie, &tlv_buf->fcoe);
2801                 break;
2802         case QED_MFW_TLV_ISCSI:
2803                 ops->get_protocol_tlv_data(cdev->ops_cookie, &tlv_buf->iscsi);
2804                 break;
2805         default:
2806                 break;
2807         }
2808 
2809         return 0;
2810 }

/* [<][>][^][v][top][bottom][index][help] */