drivers/net/qede/qede_main.c

   1 /*
   2  * Copyright (c) 2016 QLogic Corporation.
   3  * All rights reserved.
   4  * www.qlogic.com
   5  *
   6  * See LICENSE.qede_pmd for copyright and licensing details.
   7  */
   8
   9 #include <sys/stat.h>
  10 #include <fcntl.h>
  11 #include <unistd.h>
  12 #include <zlib.h>
  13 #include <limits.h>
  14
  15 #include "qede_ethdev.h"
  16
  17 static uint8_t npar_tx_switching = 1;
  18
  19 #define CONFIG_QED_BINARY_FW
  20 /* Global variable to hold absolute path of fw file */
  21 char fw_file[PATH_MAX];
  22
  23 const char *QEDE_DEFAULT_FIRMWARE =
  24         "/lib/firmware/qed/qed_init_values_zipped-8.7.7.0.bin";
  25
  26 static void
  27 qed_update_pf_params(struct ecore_dev *edev, struct ecore_pf_params *params)
  28 {
  29         int i;
  30
  31         for (i = 0; i < edev->num_hwfns; i++) {
  32                 struct ecore_hwfn *p_hwfn = &edev->hwfns[i];
  33                 p_hwfn->pf_params = *params;
  34         }
  35 }
  36
  37 static void qed_init_pci(struct ecore_dev *edev, struct rte_pci_device *pci_dev)
  38 {
  39         edev->regview = pci_dev->mem_resource[0].addr;
  40         edev->doorbells = pci_dev->mem_resource[2].addr;
  41 }
  42
  43 static int
  44 qed_probe(struct ecore_dev *edev, struct rte_pci_device *pci_dev,
  45           enum qed_protocol protocol, uint32_t dp_module,
  46           uint8_t dp_level, bool is_vf)
  47 {
  48         struct qede_dev *qdev = (struct qede_dev *)edev;
  49         int rc;
  50
  51         ecore_init_struct(edev);
  52         qdev->protocol = protocol;
  53         if (is_vf) {
  54                 edev->b_is_vf = true;
  55                 edev->sriov_info.b_hw_channel = true;
  56         }
  57         ecore_init_dp(edev, dp_module, dp_level, NULL);
  58         qed_init_pci(edev, pci_dev);
  59         rc = ecore_hw_prepare(edev, ECORE_PCI_DEFAULT);
  60         if (rc) {
  61                 DP_ERR(edev, "hw prepare failed\n");
  62                 return rc;
  63         }
  64
  65         return rc;
  66 }
  67
  68 static int qed_nic_setup(struct ecore_dev *edev)
  69 {
  70         int rc, i;
  71
  72         rc = ecore_resc_alloc(edev);
  73         if (rc)
  74                 return rc;
  75
  76         DP_INFO(edev, "Allocated qed resources\n");
  77         ecore_resc_setup(edev);
  78
  79         return rc;
  80 }
  81
  82 static int qed_alloc_stream_mem(struct ecore_dev *edev)
  83 {
  84         int i;
  85
  86         for_each_hwfn(edev, i) {
  87                 struct ecore_hwfn *p_hwfn = &edev->hwfns[i];
  88
  89                 p_hwfn->stream = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL,
  90                                              sizeof(*p_hwfn->stream));
  91                 if (!p_hwfn->stream)
  92                         return -ENOMEM;
  93         }
  94
  95         return 0;
  96 }
  97
  98 static void qed_free_stream_mem(struct ecore_dev *edev)
  99 {
 100         int i;
 101
 102         for_each_hwfn(edev, i) {
 103                 struct ecore_hwfn *p_hwfn = &edev->hwfns[i];
 104
 105                 if (!p_hwfn->stream)
 106                         return;
 107
 108                 OSAL_FREE(p_hwfn->p_dev, p_hwfn->stream);
 109         }
 110 }
 111
 112 static int qed_load_firmware_data(struct ecore_dev *edev)
 113 {
 114         int fd;
 115         struct stat st;
 116         const char *fw = RTE_LIBRTE_QEDE_FW;
 117
 118         if (strcmp(fw, "") == 0)
 119                 strcpy(fw_file, QEDE_DEFAULT_FIRMWARE);
 120         else
 121                 strcpy(fw_file, fw);
 122
 123         fd = open(fw_file, O_RDONLY);
 124         if (fd < 0) {
 125                 DP_NOTICE(edev, false, "Can't open firmware file\n");
 126                 return -ENOENT;
 127         }
 128
 129         if (fstat(fd, &st) < 0) {
 130                 DP_NOTICE(edev, false, "Can't stat firmware file\n");
 131                 return -1;
 132         }
 133
 134         edev->firmware = rte_zmalloc("qede_fw", st.st_size,
 135                                     RTE_CACHE_LINE_SIZE);
 136         if (!edev->firmware) {
 137                 DP_NOTICE(edev, false, "Can't allocate memory for firmware\n");
 138                 close(fd);
 139                 return -ENOMEM;
 140         }
 141
 142         if (read(fd, edev->firmware, st.st_size) != st.st_size) {
 143                 DP_NOTICE(edev, false, "Can't read firmware data\n");
 144                 close(fd);
 145                 return -1;
 146         }
 147
 148         edev->fw_len = st.st_size;
 149         if (edev->fw_len < 104) {
 150                 DP_NOTICE(edev, false, "Invalid fw size: %" PRIu64 "\n",
 151                           edev->fw_len);
 152                 return -EINVAL;
 153         }
 154
 155         return 0;
 156 }
 157
 158 static int qed_slowpath_start(struct ecore_dev *edev,
 159                               struct qed_slowpath_params *params)
 160 {
 161         bool allow_npar_tx_switching;
 162         const uint8_t *data = NULL;
 163         struct ecore_hwfn *hwfn;
 164         struct ecore_mcp_drv_version drv_version;
 165         struct qede_dev *qdev = (struct qede_dev *)edev;
 166         int rc;
 167 #ifdef QED_ENC_SUPPORTED
 168         struct ecore_tunn_start_params tunn_info;
 169 #endif
 170
 171 #ifdef CONFIG_QED_BINARY_FW
 172         rc = qed_load_firmware_data(edev);
 173         if (rc) {
 174                 DP_NOTICE(edev, true,
 175                           "Failed to find fw file %s\n", fw_file);
 176                 goto err;
 177         }
 178 #endif
 179
 180         rc = qed_nic_setup(edev);
 181         if (rc)
 182                 goto err;
 183
 184         /* set int_coalescing_mode */
 185         edev->int_coalescing_mode = ECORE_COAL_MODE_ENABLE;
 186
 187         /* Should go with CONFIG_QED_BINARY_FW */
 188         /* Allocate stream for unzipping */
 189         rc = qed_alloc_stream_mem(edev);
 190         if (rc) {
 191                 DP_NOTICE(edev, true,
 192                 "Failed to allocate stream memory\n");
 193                 goto err2;
 194         }
 195
 196         /* Start the slowpath */
 197 #ifdef CONFIG_QED_BINARY_FW
 198         data = edev->firmware;
 199 #endif
 200         allow_npar_tx_switching = npar_tx_switching ? true : false;
 201
 202 #ifdef QED_ENC_SUPPORTED
 203         memset(&tunn_info, 0, sizeof(tunn_info));
 204         tunn_info.tunn_mode |= 1 << QED_MODE_VXLAN_TUNN |
 205             1 << QED_MODE_L2GRE_TUNN |
 206             1 << QED_MODE_IPGRE_TUNN |
 207             1 << QED_MODE_L2GENEVE_TUNN | 1 << QED_MODE_IPGENEVE_TUNN;
 208         tunn_info.tunn_clss_vxlan = QED_TUNN_CLSS_MAC_VLAN;
 209         tunn_info.tunn_clss_l2gre = QED_TUNN_CLSS_MAC_VLAN;
 210         tunn_info.tunn_clss_ipgre = QED_TUNN_CLSS_MAC_VLAN;
 211         rc = ecore_hw_init(edev, &tunn_info, true, ECORE_INT_MODE_MSIX,
 212                            allow_npar_tx_switching, data);
 213 #else
 214         rc = ecore_hw_init(edev, NULL, true, ECORE_INT_MODE_MSIX,
 215                            allow_npar_tx_switching, data);
 216 #endif
 217         if (rc) {
 218                 DP_ERR(edev, "ecore_hw_init failed\n");
 219                 goto err2;
 220         }
 221
 222         DP_INFO(edev, "HW inited and function started\n");
 223
 224         hwfn = ECORE_LEADING_HWFN(edev);
 225         drv_version.version = (params->drv_major << 24) |
 226                     (params->drv_minor << 16) |
 227                     (params->drv_rev << 8) | (params->drv_eng);
 228         /* TBD: strlcpy() */
 229         strncpy((char *)drv_version.name, (const char *)params->name,
 230                         MCP_DRV_VER_STR_SIZE - 4);
 231         rc = ecore_mcp_send_drv_version(hwfn, hwfn->p_main_ptt,
 232                                                 &drv_version);
 233         if (rc) {
 234                 DP_NOTICE(edev, true,
 235                           "Failed sending drv version command\n");
 236                 return rc;
 237         }
 238
 239         return 0;
 240
 241         ecore_hw_stop(edev);
 242 err2:
 243         ecore_resc_free(edev);
 244 err:
 245 #ifdef CONFIG_QED_BINARY_FW
 246         if (edev->firmware)
 247                 rte_free(edev->firmware);
 248         edev->firmware = NULL;
 249 #endif
 250         return rc;
 251 }
 252
 253 static int
 254 qed_fill_dev_info(struct ecore_dev *edev, struct qed_dev_info *dev_info)
 255 {
 256         struct ecore_ptt *ptt = NULL;
 257
 258         memset(dev_info, 0, sizeof(struct qed_dev_info));
 259         dev_info->num_hwfns = edev->num_hwfns;
 260         dev_info->is_mf_default = IS_MF_DEFAULT(&edev->hwfns[0]);
 261         rte_memcpy(&dev_info->hw_mac, &edev->hwfns[0].hw_info.hw_mac_addr,
 262                ETHER_ADDR_LEN);
 263
 264         dev_info->fw_major = FW_MAJOR_VERSION;
 265         dev_info->fw_minor = FW_MINOR_VERSION;
 266         dev_info->fw_rev = FW_REVISION_VERSION;
 267         dev_info->fw_eng = FW_ENGINEERING_VERSION;
 268         dev_info->mf_mode = edev->mf_mode;
 269         dev_info->tx_switching = false;
 270
 271         ptt = ecore_ptt_acquire(ECORE_LEADING_HWFN(edev));
 272         if (ptt) {
 273                 ecore_mcp_get_mfw_ver(edev, ptt,
 274                                               &dev_info->mfw_rev, NULL);
 275
 276                 ecore_mcp_get_flash_size(ECORE_LEADING_HWFN(edev), ptt,
 277                                                  &dev_info->flash_size);
 278
 279                 /* Workaround to allow PHY-read commands for
 280                  * B0 bringup.
 281                  */
 282                 if (ECORE_IS_BB_B0(edev))
 283                         dev_info->flash_size = 0xffffffff;
 284
 285                 ecore_ptt_release(ECORE_LEADING_HWFN(edev), ptt);
 286         }
 287
 288         return 0;
 289 }
 290
 291 int
 292 qed_fill_eth_dev_info(struct ecore_dev *edev, struct qed_dev_eth_info *info)
 293 {
 294         struct qede_dev *qdev = (struct qede_dev *)edev;
 295         int i;
 296
 297         memset(info, 0, sizeof(*info));
 298
 299         info->num_tc = 1 /* @@@TBD aelior MULTI_COS */;
 300
 301         info->num_queues = 0;
 302         for_each_hwfn(edev, i)
 303                 info->num_queues +=
 304                     FEAT_NUM(&edev->hwfns[i], ECORE_PF_L2_QUE);
 305
 306         info->num_vlan_filters = RESC_NUM(&edev->hwfns[0], ECORE_VLAN);
 307
 308         rte_memcpy(&info->port_mac, &edev->hwfns[0].hw_info.hw_mac_addr,
 309                            ETHER_ADDR_LEN);
 310
 311         qed_fill_dev_info(edev, &info->common);
 312
 313         return 0;
 314 }
 315
 316 static void
 317 qed_set_id(struct ecore_dev *edev, char name[NAME_SIZE],
 318            const char ver_str[VER_SIZE])
 319 {
 320         int i;
 321
 322         rte_memcpy(edev->name, name, NAME_SIZE);
 323         for_each_hwfn(edev, i) {
 324                 snprintf(edev->hwfns[i].name, NAME_SIZE, "%s-%d", name, i);
 325         }
 326         rte_memcpy(edev->ver_str, ver_str, VER_SIZE);
 327         edev->drv_type = DRV_ID_DRV_TYPE_LINUX;
 328 }
 329
 330 static uint32_t
 331 qed_sb_init(struct ecore_dev *edev, struct ecore_sb_info *sb_info,
 332             void *sb_virt_addr, dma_addr_t sb_phy_addr,
 333             uint16_t sb_id, enum qed_sb_type type)
 334 {
 335         struct ecore_hwfn *p_hwfn;
 336         int hwfn_index;
 337         uint16_t rel_sb_id;
 338         uint8_t n_hwfns;
 339         uint32_t rc;
 340
 341         /* RoCE uses single engine and CMT uses two engines. When using both
 342          * we force only a single engine. Storage uses only engine 0 too.
 343          */
 344         if (type == QED_SB_TYPE_L2_QUEUE)
 345                 n_hwfns = edev->num_hwfns;
 346         else
 347                 n_hwfns = 1;
 348
 349         hwfn_index = sb_id % n_hwfns;
 350         p_hwfn = &edev->hwfns[hwfn_index];
 351         rel_sb_id = sb_id / n_hwfns;
 352
 353         DP_INFO(edev, "hwfn [%d] <--[init]-- SB %04x [0x%04x upper]\n",
 354                 hwfn_index, rel_sb_id, sb_id);
 355
 356         rc = ecore_int_sb_init(p_hwfn, p_hwfn->p_main_ptt, sb_info,
 357                                sb_virt_addr, sb_phy_addr, rel_sb_id);
 358
 359         return rc;
 360 }
 361
 362 static void qed_fill_link(struct ecore_hwfn *hwfn,
 363                           struct qed_link_output *if_link)
 364 {
 365         struct ecore_mcp_link_params params;
 366         struct ecore_mcp_link_state link;
 367         struct ecore_mcp_link_capabilities link_caps;
 368         uint32_t media_type;
 369         uint8_t change = 0;
 370
 371         memset(if_link, 0, sizeof(*if_link));
 372
 373         /* Prepare source inputs */
 374         rte_memcpy(&params, ecore_mcp_get_link_params(hwfn),
 375                        sizeof(params));
 376         rte_memcpy(&link, ecore_mcp_get_link_state(hwfn), sizeof(link));
 377         rte_memcpy(&link_caps, ecore_mcp_get_link_capabilities(hwfn),
 378                        sizeof(link_caps));
 379
 380         /* Set the link parameters to pass to protocol driver */
 381         if (link.link_up)
 382                 if_link->link_up = true;
 383
 384         if (link.link_up)
 385                 if_link->speed = link.speed;
 386
 387         if_link->duplex = QEDE_DUPLEX_FULL;
 388
 389         if (params.speed.autoneg)
 390                 if_link->supported_caps |= QEDE_SUPPORTED_AUTONEG;
 391
 392         if (params.pause.autoneg || params.pause.forced_rx ||
 393             params.pause.forced_tx)
 394                 if_link->supported_caps |= QEDE_SUPPORTED_PAUSE;
 395
 396         if (params.pause.autoneg)
 397                 if_link->pause_config |= QED_LINK_PAUSE_AUTONEG_ENABLE;
 398
 399         if (params.pause.forced_rx)
 400                 if_link->pause_config |= QED_LINK_PAUSE_RX_ENABLE;
 401
 402         if (params.pause.forced_tx)
 403                 if_link->pause_config |= QED_LINK_PAUSE_TX_ENABLE;
 404 }
 405
 406 static void
 407 qed_get_current_link(struct ecore_dev *edev, struct qed_link_output *if_link)
 408 {
 409         qed_fill_link(&edev->hwfns[0], if_link);
 410
 411 #ifdef CONFIG_QED_SRIOV
 412         for_each_hwfn(cdev, i)
 413                 qed_inform_vf_link_state(&cdev->hwfns[i]);
 414 #endif
 415 }
 416
 417 static int qed_set_link(struct ecore_dev *edev, struct qed_link_params *params)
 418 {
 419         struct ecore_hwfn *hwfn;
 420         struct ecore_ptt *ptt;
 421         struct ecore_mcp_link_params *link_params;
 422         int rc;
 423
 424         /* The link should be set only once per PF */
 425         hwfn = &edev->hwfns[0];
 426
 427         ptt = ecore_ptt_acquire(hwfn);
 428         if (!ptt)
 429                 return -EBUSY;
 430
 431         link_params = ecore_mcp_get_link_params(hwfn);
 432         if (params->override_flags & QED_LINK_OVERRIDE_SPEED_AUTONEG)
 433                 link_params->speed.autoneg = params->autoneg;
 434
 435         if (params->override_flags & QED_LINK_OVERRIDE_PAUSE_CONFIG) {
 436                 if (params->pause_config & QED_LINK_PAUSE_AUTONEG_ENABLE)
 437                         link_params->pause.autoneg = true;
 438                 else
 439                         link_params->pause.autoneg = false;
 440                 if (params->pause_config & QED_LINK_PAUSE_RX_ENABLE)
 441                         link_params->pause.forced_rx = true;
 442                 else
 443                         link_params->pause.forced_rx = false;
 444                 if (params->pause_config & QED_LINK_PAUSE_TX_ENABLE)
 445                         link_params->pause.forced_tx = true;
 446                 else
 447                         link_params->pause.forced_tx = false;
 448         }
 449
 450         rc = ecore_mcp_set_link(hwfn, ptt, params->link_up);
 451
 452         ecore_ptt_release(hwfn, ptt);
 453
 454         return rc;
 455 }
 456
 457 static int qed_drain(struct ecore_dev *edev)
 458 {
 459         struct ecore_hwfn *hwfn;
 460         struct ecore_ptt *ptt;
 461         int i, rc;
 462
 463         for_each_hwfn(edev, i) {
 464                 hwfn = &edev->hwfns[i];
 465                 ptt = ecore_ptt_acquire(hwfn);
 466                 if (!ptt) {
 467                         DP_NOTICE(hwfn, true, "Failed to drain NIG; No PTT\n");
 468                         return -EBUSY;
 469                 }
 470                 rc = ecore_mcp_drain(hwfn, ptt);
 471                 if (rc)
 472                         return rc;
 473                 ecore_ptt_release(hwfn, ptt);
 474         }
 475
 476         return 0;
 477 }
 478
 479 static int qed_nic_stop(struct ecore_dev *edev)
 480 {
 481         int i, rc;
 482
 483         rc = ecore_hw_stop(edev);
 484         for (i = 0; i < edev->num_hwfns; i++) {
 485                 struct ecore_hwfn *p_hwfn = &edev->hwfns[i];
 486
 487                 if (p_hwfn->b_sp_dpc_enabled)
 488                         p_hwfn->b_sp_dpc_enabled = false;
 489         }
 490         return rc;
 491 }
 492
 493 static int qed_nic_reset(struct ecore_dev *edev)
 494 {
 495         int rc;
 496
 497         rc = ecore_hw_reset(edev);
 498         if (rc)
 499                 return rc;
 500
 501         ecore_resc_free(edev);
 502
 503         return 0;
 504 }
 505
 506 static int qed_slowpath_stop(struct ecore_dev *edev)
 507 {
 508 #ifdef CONFIG_QED_SRIOV
 509         int i;
 510 #endif
 511
 512         if (!edev)
 513                 return -ENODEV;
 514
 515         qed_free_stream_mem(edev);
 516
 517         qed_nic_stop(edev);
 518
 519         qed_nic_reset(edev);
 520
 521         return 0;
 522 }
 523
 524 static void qed_remove(struct ecore_dev *edev)
 525 {
 526         if (!edev)
 527                 return;
 528
 529         ecore_hw_remove(edev);
 530 }
 531
 532 const struct qed_common_ops qed_common_ops_pass = {
 533         INIT_STRUCT_FIELD(probe, &qed_probe),
 534         INIT_STRUCT_FIELD(update_pf_params, &qed_update_pf_params),
 535         INIT_STRUCT_FIELD(slowpath_start, &qed_slowpath_start),
 536         INIT_STRUCT_FIELD(set_id, &qed_set_id),
 537         INIT_STRUCT_FIELD(chain_alloc, &ecore_chain_alloc),
 538         INIT_STRUCT_FIELD(chain_free, &ecore_chain_free),
 539         INIT_STRUCT_FIELD(sb_init, &qed_sb_init),
 540         INIT_STRUCT_FIELD(get_link, &qed_get_current_link),
 541         INIT_STRUCT_FIELD(set_link, &qed_set_link),
 542         INIT_STRUCT_FIELD(drain, &qed_drain),
 543         INIT_STRUCT_FIELD(slowpath_stop, &qed_slowpath_stop),
 544         INIT_STRUCT_FIELD(remove, &qed_remove),
 545 };